BigBattery - ETHOS 15.4KWH Stackable Battery (3 Module)
This Item is Currently on Backorder
Units are allocated on a first-come, first-served basis. Reserve the next available one for you with a pre-order. No ETA yet
This Item is Currently on Backorder
Units are allocated on a first-come, first-served basis. Reserve the next available one for you with a pre-order. No ETA yet
(Except WY)
(Lower 48)
STACKABLE POWER STORAGE! BigBattery’s 48V ETHOS is here to revolutionize your home’s power. Our all new ETHOS battery system features a fully stackable and modular design, equipped with its own control box, in-depth LED display, and mounting system.
Whether you’re looking to ensure emergency backup power is available in your cabin or tiny home, or you’re looking to outfit your residential home with a powerful solar system, the ETHOS ensures reliable, efficient power delivery through every season. Equipped with an advanced BMS featuring an auto-cell balancing function, an IP65-rated casing, as well as an internal fire suppression system, the ETHOS ensures long-lasting safety and durability. Plus, with its interactive LED display and CANBus/RS485 communication protocols, you’re always able to monitor the health and status of your power. Each ETHOS module is certified to the highest level, including UL9540A & UL1973 certifications, and when paired with a 12000W LUXPower inverter, the whole system is UL9540-certified, affording you the ability to grid-tie your power system and capitalize on net-metering programs and other tax incentives.
The ETHOS is now available in 2-stack (10.24 kWh) and 3-stack (15.36 kWh) configurations, with the ability to expand upon your ETHOS system as needed. It’s time to take your home’s power to the next level! Shop the all-new 48V ETHOS today!
What's Included?
SKU: | K0950 |
GTIN-12 (U.P.C.): | 850061252166 |
System Voltage: | 48V |
Nominal Voltage: | 51.2V |
Chemistry: | LiFePO4 |
kWh Capacity: | 15.36kWh |
Ah Capacity: | 300Ah |
Charging Voltage Range: | 55.6 - 57V |
Max Charge Voltage: | 57V |
Operating Voltage Range: | 48 – 57V |
Suggested Low Voltage Cutoff: | 48 – 50.8V |
Cell Configuration: | 16S 3P |
Max Continuous Discharge Current: | 250A |
Max Continuous Power: | 12800W |
Max Discharge Peak Current: | 300A (Max 5 seconds) |
Max Charge Current: | 200A |
Charge Temperature Range: | 32°F - 113°F (0°C - 45°C) |
Discharge Temperature Range: | -4°F - 140°F (-20°C - 60°C) |
Optimal Discharge Temperature Range: | 59°F - 95°F (15°C - 35°C) |
Storage Temperature Range (SoC >50%): | -4°F - 113°F (-20°C - 45°C) (Max 6 months) |
Weight: | 387 lb (175.5 kg) |
Depth: | 6.7 in (170 mm) |
Width: | 26.5 in (674 mm) |
Height: | 59.8 in (1520 mm) |
Max Connections: | Up to (16) parallel connections per control box |
Protection Rating: | IP65 / NEMA 4X |
Communications: | CANBus / RS485 |
Certifications: | UL9540A, UL1973, & UN38.3 |
Videos
Documents Spec Sheet Safety DataWe no longer offer our batteries for use in series.
All of our batteries have a thermal management system that is controlled by the BMS (Battery Management System). This Thermal management system will not only prevent the battery from being used if the temperature is too high, but also if the temperature is also too low.
No. Lead acid battery chargers charge at different currents and voltages than our lithium batteries. Using your OEM charger can damage your battery cells and void your battery’s 10 year warranty. We have several chargers optimized for and calibrated to every battery we sell.
The voltage drop that you experienced is called the “bubble voltage” and is perfectly normal for Lithium Batteries. LiFePO4 batteries behave differently than other battery chemistries. The Voltage vs Capacity is not linear. For example, if you have a voltage between (13.3 – 14.6) or (26.6 – 29.2) or (53.6 – 58.4) you will have more than 99% of the capacity. This essentially means that “Bubble Voltage” contains less than 1% of the entire capacity and the drop when a load is placed is instant.
Lithium Iron Phosphate (LifePO4) batteries can be cycled from 3000 to 7000 times. If you cycle the battery daily with an 80% DoD (Depth of Discharge), then you can get even more than 10 years of use from your battery.
Our batteries work great with almost all inverter/charger controller brands. The only brand we are not compatible with is RENOGY. Please confirm that your inverter can be set to the operating parameters of the battery you’re interested in before purchasing. Parameters can be found as a downloadable PDF spec sheet on every battery product page.
All of our batteries come with free ring terminals that can be used to connect your battery to your inverter, cart, or busbar system. We also sell a parallel busbar that can be used in tandem with the included ring terminals to parallel multiple batteries.
Upgraded Charger:
12A Charger:
In the past Big Battery sold refurbished batteries, such as solar batteries made from recertified Nissan Leaf modules. As of the year 2020, all batteries sold are new, never-previously-cycled batteries that come with a complimentary 10 year warranty.
It can take anywhere from a week to no more than two weeks for shipment. This time allows us to assemble, test, and inspect each battery prior to shipping.
We only ship within the continental United States. All shipping is done via ground shipping methods. We recommend looking into a freight forwarder to receive shipments outside of the continental United States of America.
No. Our batteries are not marine rated or weather proof, so leaving them out under the sun all day or in the rain can damage the batteries. (This type of damage is not covered under the 10 year warranty.
In the unlikely event you are having an issue with one of our batteries, we have developed a
straightforward Warranty & Return Policy servicing all customers in the USA:
All our batteries come with a 10-Year Full Repair/Replacement Warranty. If our batteries malfunction
due to component or manufacturing error, the product will be repaired or replaced free of charge.
All batteries include a Free Lifetime Technical Support & Troubleshooting Service. If you have any
questions or need any help, simply call us at +1 (818) 280-3091 from 9am – 5pm, Monday – Friday, or
send us an email anytime at Support@BigBattery.com.
All batteries are built to last a minimum of 10 years. We stand by the quality of our batteries. If any parts within our battery fail due to defects or manufacturing error within the next 10 years, we will fix or replace your battery free of charge. In addition, for the first year of the warranty we will even cover all shipping costs from/to your purchase address within the continental US.
BigBattery utilizes Tier 1 cells to provide the highest quality lithium battery packs in the USA. Depending on the model, use case and environment, your battery is designed to last between 3,500 – 8,000 cycles when used as intended within our published battery specifications.
This Warranty covers all battery packs from the “Date Of Purchase” from BigBattery for 10 years and
all accessories included for 30 Days.
No warranty registration is needed. Warranties are automatically recorded via an internal customer
database via serial number and QR code.
BigBattery provides a proprietary QR code on every battery. Scan this QR code with any phone to view
the Product Manual and Product Spec Sheet for your specific battery model. Providing these documents
to you in a digital format helps to protect our environment and provides you the most updated information
on your product in real time.
To start a warranty claim, please email us directly at Support@BigBattery.com to create a ticket. Include a written description of the problem and pictures if possible. Upon receipt, our Tech Support team will reach out to you within 24 – 48 hours to troubleshoot. If the battery has been purchased within a year if the issue being reported to BigBattery, you will be sent a Return Shipping Label at no cost. After the first year, you will have the option to pay for the shipping, or arrange your own shipping back to BigBattery. If the label is provided by BigBattery, please include a copy of this label in the return box or pallet when our 3rd party logistics provider arrives to pickup your return. All returns will be inspected prior to repair, replacement, or reimbursement, depending on the circumstances of return and availability of similar items. For detailed instructions, please review our Warranty Repair/Replacement Services section below.
This Warranty includes a 30-Day replacement for all accessories (Anderson connectors, wiring, chargers, etc.)
included with your battery. If product is not defective or damaged upon return, refunds will be offered based on
the purchase price of the unit minus a 20% restocking fee.
That’s OK! All our batteries come with a 30-Day money back guarantee. Returns will be subject to a 20% restocking
fee. Call or email customer service for a free shipping return label.
For batteries installed in a stationary structure, such as permanently mounted home and commercial solar batteries, the warranty is transferable as long as the battery remains at the original End User location, and the transferee submits a change of ownership request to BigBattery within 30 days of ownership transfer, and pays the $30 Transfer fee. To submit the transfer request, send the original purchase documentation and transfer purchase documentation to support@bigbattery.com. Timely submission is required for continued Warranty coverage.
For mobile batteries without permanent mounting options included with the battery, or installed or intended for mobile systems, the warranty is non-transferable unless a Warranty transfer request is submitted to Support@BigBattery.com within 90 days of the original purchase. No fee is required in this case.
Due to the shipping regulations of lithium batteries, please note that some battery returns may require special
documentation and packaging, and these instances could encounter extra fees if a customer is attempting to
return a battery not covered by our Repair and Replacement Policy.
This warranty does not cover damages resulting from misuse, abuse, accidents, alterations, or improper charging/
installation of our product. Please scan the QR code on your battery and read the Manual prior to installation and
charging. DIY modifications or damage due to gross negligence or abuse will void your Warranty.
Repair, replacement, and refunds for your purchase will only be possible after your returned battery
has been received and fully inspected at our facility.
In no event shall BigBattery, Inc. be liable for consequential damages due to breach of this Warranty.
If buyers are not satisfied for any reason after speaking with Level 3 Tech Support and/or our Customer Service team,
all original buyers may escalate dispute resolutions to our CTO for review. We aim to put our customers first, resolve
any issues, and ensure that all customers are happy with their purchase from BigBattery.
Rev. Feb 2024
10-Year Repair/Replacement Warranty Coverage Details: BigBattery, Inc. warrants the covered product to be free of all defects in material and workmanship for 10 years from the auto-registered date of purchase. This Warranty extends to the original buyer for the duration of 10 years.
All BigBattery batteries are designed to operate for a minimum of 10 years and require zero maintenance. Some BigBattery batteries can last up to 22 years depending on model, use case, and environmental variables.
BigBattery batteries are also guaranteed to hold a reasonable amount of capacity based on the time in service (see exclusion for details on limits). In the case of a diminished capacity claim, the customer has the option to return the battery to BigBattery for capacity testing. The battery will be fully bench tested to resolve the claim and a relevant full cycle test report will be provided to the customer. If the customer is deemed to be correct and the battery is diminished beyond the limits specified in the exclusion section, then the battery will be eligible for warranty resolution. The customer will not be responsible for the costs associated with testing regardless of the test results.
Within our 10-Year Warranty, BigBattery, Inc. will repair or replace, free of charge, any part proving defective in material or workmanship. All warranty repairs and service must be performed by an authorized BigBattery, Inc. technician, or at an authorized BigBattery, Inc. service facility (unless directed otherwise in writing by a BigBattery employee).
For the first year, the expenses related to returning and repairing a defective part assumed by BigBattery, Inc. within the Continental US include pickup, return shipping, repair, replacement and final shipping. This Warranty does not assume responsibility for disconnection, service interruption, or re-packing expenses per said return shipment. Customers with international warranty claims will need to cover the cost of shipping.
This warranty does not apply to any costs, repairs, or services for the following:
Contact BigBattery Tech Support, confirm the problem, and identify the solution with our team. If the battery needs to come back to BigBattery for repairs or parts replacement, Customer Service will offer to arrange to and from our repair facility.
The buyer is required to pack the product according to the directions provided by Customer Service. The buyer should carefully cover and pack the battery needing repair, preferably in the original packing materials, in the same format as previously delivered (box/pallet) together with a copy of the original purchase receipt. Please write descriptions and updated notes on the receipt to better assist Tech Support in processing your repair or replacement.
All emails, notes, and calls are saved to assist our team in providing a speedy resolution. If the shipping is arranged by BigBattery, BigBattery assumes all liability with their scheduled carrier for the safe transportation of this battery to and from our repair facility listed below:
Return Address:
BigBattery, Inc.
21314 Lassen Street
Chatsworth, CA. 91311
Customer must take pictures of the product(s) being returned prior to packing and email these pictures to Sales@BigBattery.com
prior to returning. Based on your pictures, BigBattery will be able to hold the logistics provider responsible for any potential damages
that could occur when the product is in transit.
Please safely pack your returned battery. Logistics carriers do NOT accept liability for unsafely packed batteries during transit.
To eliminate damage in transit, please use the original box and foam inserts provided. If the original packing is not available,
please pack your product in the same safe & secure format in which it was received via box/pallet for safe delivery to our repair center.
BigBattery assumes full responsibility to return your repaired and/or replaced batteries back to you. Transit will occur between your
physical address and our authorized service center located at 21314 Lassen St. Chatsworth, CA 91311.
This warranty shall be governed by and interpreted in accordance with the laws of the state of California. No employee or
representative of the manufacturer is authorized to provide any warranty in addition to those made in this agreement.
Rev. April 2023
FREE & FAST SHIPPING SAVE Hundreds Today with Free Shipping on All Orders. We Ship to ALL 48 Lower States (We do not ship to Puerto Rico, Hawaii, Alaska)
Lead Time - 3-7 Business Days Depending on Product - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.
Transit Time - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.
Our Shipping Partners: FedEx, UPS, Freight Club (among others)
We partner with the most reliable freight companies in the USA to ensure your order arrives safe and in a timely manner.
Your Item will ship from warehouses all across the United States to ensure fast and efficient delivery times for our customers.
If there are any delays regarding your product shipment, we will let you know in advance.
As soon as you place your order, you will receive an order confirmation e-mail. (please allow a few hours for this to come through in some cases) This means that we have received your order in our system and pre-authorized your credit card for the purchase.
As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.
If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail. If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.
If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at contact@topture.com
No Shipping outside the USA. (Some exceptions apply - if the website permits you to check out and enter your shipping address, you will receive your order. Some products in particular are available in Canada).
Our base "Curb-side" Pickup shipping is always completely free! This option usually takes between 5-15 days to arrive at your doorstep, after you have submitted your order.
Threshold Shipping: This involves the item being brought onto your porch, or into a sheltered/garage area.
To ensure that your package is properly delivered and that you receive your package within the time frames we advertise, please make sure that your address is correctly entered and includes all relevant and/or required information. The use of correct
abbreviations, street numbers, building or apartment numbers, and route information (if applicable) is critical for ensuring timely delivery. We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect or incorrectly entered at the time of purchase or not reachable by an 18-wheeler for heavy items without making an indication of that at the point of purchase.
Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should make note of it when signing for delivery. If your item(s) do arrived damaged please send photos of damage, box and SKU, along with a brief description of the damage to contact@topture.com and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 24 hours of arrival or the freight damage claim will not be valid. Any punctures, or visible signs of exterior damage must be reported within 24 hours.
1. Free Shipping: Enjoy complimentary standard shipping on 98% of our items, ensuring a hassle-free shopping experience without any hidden costs or surprises as you finalize your purchase. Should any shipping charges apply, they are clearly indicated on the product page for complete transparency and peace of mind.
2. No Sales Tax: The price listed on our website is what you pay, making your shopping experience hassle-free and more affordable.
3. Lowest Price Guarantee: Find a lower price online? We’ll match it! Just email us. Valid on all products, anytime. Shop with confidence at Topture!
4. Dedicated Customer Support: Our team of specialists are available to
assist you via phone, email, or live chat. We are here to provide clear information, support and guidance at every step of your shopping experience.
5. Manufacturer's Warranty: As authorized dealers for all our brands, you can rest assured that you'll receive the full manufacturer's warranty on all products you purchase from us.
6. Fast Order Handling: We usually dispatch orders within 2 business days and provide email confirmations with tracking IDs when your order is shipped.
7. Secure Payments: We use high-standard SSL encryption on all our pages, content, and data
to ensure a safe and secure shopping experience.
8. Hassle-Free Shopping Journey: From selecting the right products to ensuring their safe delivery and setup, we are with you every step of the way.
9. Best Price Guarantee: We always strive to offer you the best personal price possible. Just reach out and we'll be glad to assist!
10. No-Hassle Returns & Fully Insured Shipping: Every shipment is fully covered in case of a lost item or damage. Please refer to the Shipping & Returns tab to learn more about our policy.
11. 100% Safe and Secure Online Shopping: With SSL encryption technology, we guarantee 100% secure transactions. If you prefer to process an order over the phone, just call us at (833) 419-1774.
Great service and fast shipping
I purchased this Sauna in White Cedar with 2 Windows and the Harvia Electric Heater and absolutely love it! It was easy to assemble in a few hours and is very high quality. I got the manual dial and it heats up quickly and provides up to 80% humidity when putting water on the rocks. The instructions were excellent and no extra help was required. It was shipped to me in the US and although it took awhile to receive because of a manufacturing issue, Topture kept on top of the situation and kept me in the loop from start to finish. They are an xlnt company to purchase from. Sandy Potter
My sauna heater is really, really old, but it still works so I still use it. That said, the rocks were also really old. These new stones look so much better and seem to even hold the heat better as well. Like I said in the title, I had no idea what I was missing! Puts a lot of new life into an old, Montgomery Ward heater.
The only problem I had was waiting for delivery. I mean, c'mon...3 months for delivery.
I initially had concerns about the snow load with the True North 5 Person Outdoor Cabin Sauna, but it’s handled heavy snow with no problem at all. Paired with the HUUM Drop 7.5kW heater, it delivers an amazing, steamy sauna experience that I highly recommend. Big thanks to Topture for all the support, answering my questions, and just always being there throughout the whole process!
As someone who has tried multiple saunas over the years, the Finnmark FD-4 Trinity Infrared & Steam Sauna Combo is by far the best I’ve encountered. It heats up quickly, and the infrared heat feels soothing, while the steam option delivers that classic, deeply relaxing sweat.
Installation was straightforward, and it fits perfectly in my home. My partner and I use it several times a week, and it has truly elevated our wellness routine. Whether you’re looking for relaxation, detoxification, or just a moment of calm in your day, this sauna offers it all. Highly recommend it!
I was initially hesitant about the Dundalk Leisurecraft Georgian Cabin Sauna Canadian Timber 6 Person (CTC88W) because of the size and the price point. However, after using it for a while, I can confidently say it's worth every penny. The quality of the Canadian timber is top-notch, and the craftsmanship is evident in every detail. The space easily accommodates six people, making it perfect for family gatherings or a relaxing session with friends. The heat distribution is excellent, and the cabin design gives it a rustic, cozy feel. I also appreciate the durability of the materials, which seem built to last through years of enjoyment. If you're serious about wellness and long-term value, this sauna is an excellent investment.
Ordered Huum Wifi Controler. Shipped within a few days from Chicago to California. Great price and reliable. Benny was helpful. Will buy from them again.
I had a great experience ordering from Topture. The items arrived quickly and as described. I do wish there had been more updates on progress towards shipping.
I loved the lighting strips that I ordered and installed. The only thing I would change are the drivers for the LED’s could be better. The app isn’t great and I had to setup a Dev account to grand cloud access to the lights in order to integrate them with homekit. An LED driver that has Matter support would be better. That said the lights themselves in the Sauna are amazing and the remote control is well designed and it was easy to sync one remote to both drivers so both strips turn on and off together as well as change colors.
We have ordered Arteflame Classic 40" Grill | Tall Round Base with all the necessary accessories . It has been a great experience from the time of order placement until after delivery.
Shipping was fast and the products arrived secure and safe. We did experience a little issue with shipping the product to our door but it was handled very professionally. Benny provided an excellent customer service and communication was great throughout. He was very knowledgeable in answering my many questions and providing a ton of info that has proved to be very valuable.
I highly recommend Topture over Amazon for great customer service!!
My name is Dr. John Hubbs, a former US NAVY Seal. I am 74 years old, two years in Vietnam 1968-69. I have used griddles, but none like this "LeGiddle" 41-inch. This griddle is a masterpiece, not only in design, production, manufacture, sales, and service. The people are great. Benny was my go-to person, he was the best. The LeGiddle, cart, burner assembly, and lid arrived in perfect condition - very securely packaged. No damage. The LeGiddle is all 304 stainless steel polished, the LeGiddle is a beauty to behold and grill with. Very easy to clean, never no rust. Everyone at my trailer park is in envy of this unit. Their warranty and service are impeccable. If you are missing anything they are right on it. They go to the limit to satisfy you and make it right. Thanks 👍 👍 to everyone who made this LeGiddle possible.
Loving it every day!!!
So far I LOVE this stove! It's so much more efficient than our previous stove; we've used roughly 1/2 the amount of wood we normally would during this time of year. We got a minor 'additional' part that did not go with our stove that confused us when installing but customer service quickly responded to our inquiry. The delivery was super fast (had it within 10 days) and we're in a 'rural' area so for us that was quick! We purchased the optional blower and thermodisc and they are WELL WORTH the price. My ONLY complaint is how quickly the creosote builds up on the glass. We have to clean the glass at least every other day to keep it clear. That could be because of the type of wood we're burning (cottonwood primarily) and as long as the glass cleans this easily (using the ash) it's a minor complaint...though I won't be too happy if the glass actually becomes stained as a result! I don't expect that to happen though so thus far we are VERY happy with this stove and would highly recommend it to anyone thinking of purchasing one!! Thank you Drolet for making such a great product! We did a lot of research on stoves before buying this one and that seems to be paying off.
Great quality love the design and versatility easy and quick delivery
When we decided to add a griddle to our outdoor kitchen I spent a lot of time looking at the options. It is easy to see that little griddle is by far the best option. When it arrived we purchased with the lid and the cabinet. It took three hours to assemble but is of absolutely astonishing quality. Nothing beats the quality of the griddle. We have made a wide variety of breakfast and dinner meals which have been fantastic. Everyone in our extended family has learned how to use the griddle and we have enjoyed their culinary expertise. The biggest surprise is how wonderful it cleans up. Following simple instructions it looks brand new and is very easy. Quality is found in every square inch of the griddle. It truly looks like something that will last beyond my lifetime. This griddle is more expensive than the competition However, it is still the best value on the market. Five stars doesn’t do it justice. It deserves more.
This store provides high-quality outdoor products, efficient customer service, and quick deliveries. They offer top-notch products like saunas, grills, and fireplace accessories that customers rave about. Their knowledgeable and responsive staff excel at addre... This store provides high-quality outdoor products, efficient customer service, and quick deliveries. They offer top-notch products like saunas, grills, and fireplace accessories that customers rave about. Their knowledgeable and responsive staff excel at addressing queries and resolving any issues swiftly, ensuring a seamless shopping experience. Customers appreciate the competitive prices, easy navigation, and reliable shipping that this store consistently delivers.
Read moreWe offer free Curbside Delivery to all 48 lower states and for some products even Canada.
International Shipping
Yes, we offer international shipping for many of our products. Customers outside the US can request a personalized shipping quote by contacting us. Please be aware that any applicable taxes or customs fees will be the responsibility of the customer. Note that some items may be subject to shipping restrictions.
Shipping to Hawaii, Alaska, and Puerto Rico
We ship to Hawaii, Alaska, and Puerto Rico, although most items are subject to additional shipping fees. To obtain specific rates and prevent any restocking fees, please email us at contact@topture.com.
If your order is in stock, the following times apply:
Lead Time - 3-7 Business Days Depending on Product - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.
Transit Time - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.
For Pre-Order items you can find the expected back in stock date on the product page
Yes, all products come with a manufacturer warranty.
We don’t have a showroom, which means we can bring you the lowest prices as we don’t need to worry about any extra costs!
Yes, we do. To request a price match, email us a link to where you've found the lower price, including their shipping and tax.
More questions? See our full FAQ
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STACKABLE POWER STORAGE! BigBattery’s 48V ETHOS is here to revolutionize your home’s power. Our all new ETHOS battery system features a fully stackable and modular design, equipped with its own control box, in-depth LED display, and mounting system.
Whether you’re looking to ensure emergency backup power is available in your cabin or tiny home, or you’re looking to outfit your residential home with a powerful solar system, the ETHOS ensures reliable, efficient power delivery through every season. Equipped with an advanced BMS featuring an auto-cell balancing function, an IP65-rated casing, as well as an internal fire suppression system, the ETHOS ensures long-lasting safety and durability. Plus, with its interactive LED display and CANBus/RS485 communication protocols, you’re always able to monitor the health and status of your power. Each ETHOS module is certified to the highest level, including UL9540A & UL1973 certifications, and when paired with a 12000W LUXPower inverter, the whole system is UL9540-certified, affording you the ability to grid-tie your power system and capitalize on net-metering programs and other tax incentives.
The ETHOS is now available in 2-stack (10.24 kWh) and 3-stack (15.36 kWh) configurations, with the ability to expand upon your ETHOS system as needed. It’s time to take your home’s power to the next level! Shop the all-new 48V ETHOS today!
What's Included?
SKU: | K0950 |
GTIN-12 (U.P.C.): | 850061252166 |
System Voltage: | 48V |
Nominal Voltage: | 51.2V |
Chemistry: | LiFePO4 |
kWh Capacity: | 15.36kWh |
Ah Capacity: | 300Ah |
Charging Voltage Range: | 55.6 - 57V |
Max Charge Voltage: | 57V |
Operating Voltage Range: | 48 – 57V |
Suggested Low Voltage Cutoff: | 48 – 50.8V |
Cell Configuration: | 16S 3P |
Max Continuous Discharge Current: | 250A |
Max Continuous Power: | 12800W |
Max Discharge Peak Current: | 300A (Max 5 seconds) |
Max Charge Current: | 200A |
Charge Temperature Range: | 32°F - 113°F (0°C - 45°C) |
Discharge Temperature Range: | -4°F - 140°F (-20°C - 60°C) |
Optimal Discharge Temperature Range: | 59°F - 95°F (15°C - 35°C) |
Storage Temperature Range (SoC >50%): | -4°F - 113°F (-20°C - 45°C) (Max 6 months) |
Weight: | 387 lb (175.5 kg) |
Depth: | 6.7 in (170 mm) |
Width: | 26.5 in (674 mm) |
Height: | 59.8 in (1520 mm) |
Max Connections: | Up to (16) parallel connections per control box |
Protection Rating: | IP65 / NEMA 4X |
Communications: | CANBus / RS485 |
Certifications: | UL9540A, UL1973, & UN38.3 |
Videos
Documents Spec Sheet Safety DataWe no longer offer our batteries for use in series.
All of our batteries have a thermal management system that is controlled by the BMS (Battery Management System). This Thermal management system will not only prevent the battery from being used if the temperature is too high, but also if the temperature is also too low.
No. Lead acid battery chargers charge at different currents and voltages than our lithium batteries. Using your OEM charger can damage your battery cells and void your battery’s 10 year warranty. We have several chargers optimized for and calibrated to every battery we sell.
The voltage drop that you experienced is called the “bubble voltage” and is perfectly normal for Lithium Batteries. LiFePO4 batteries behave differently than other battery chemistries. The Voltage vs Capacity is not linear. For example, if you have a voltage between (13.3 – 14.6) or (26.6 – 29.2) or (53.6 – 58.4) you will have more than 99% of the capacity. This essentially means that “Bubble Voltage” contains less than 1% of the entire capacity and the drop when a load is placed is instant.
Lithium Iron Phosphate (LifePO4) batteries can be cycled from 3000 to 7000 times. If you cycle the battery daily with an 80% DoD (Depth of Discharge), then you can get even more than 10 years of use from your battery.
Our batteries work great with almost all inverter/charger controller brands. The only brand we are not compatible with is RENOGY. Please confirm that your inverter can be set to the operating parameters of the battery you’re interested in before purchasing. Parameters can be found as a downloadable PDF spec sheet on every battery product page.
All of our batteries come with free ring terminals that can be used to connect your battery to your inverter, cart, or busbar system. We also sell a parallel busbar that can be used in tandem with the included ring terminals to parallel multiple batteries.
Upgraded Charger:
12A Charger:
In the past Big Battery sold refurbished batteries, such as solar batteries made from recertified Nissan Leaf modules. As of the year 2020, all batteries sold are new, never-previously-cycled batteries that come with a complimentary 10 year warranty.
It can take anywhere from a week to no more than two weeks for shipment. This time allows us to assemble, test, and inspect each battery prior to shipping.
We only ship within the continental United States. All shipping is done via ground shipping methods. We recommend looking into a freight forwarder to receive shipments outside of the continental United States of America.
No. Our batteries are not marine rated or weather proof, so leaving them out under the sun all day or in the rain can damage the batteries. (This type of damage is not covered under the 10 year warranty.
In the unlikely event you are having an issue with one of our batteries, we have developed a
straightforward Warranty & Return Policy servicing all customers in the USA:
All our batteries come with a 10-Year Full Repair/Replacement Warranty. If our batteries malfunction
due to component or manufacturing error, the product will be repaired or replaced free of charge.
All batteries include a Free Lifetime Technical Support & Troubleshooting Service. If you have any
questions or need any help, simply call us at +1 (818) 280-3091 from 9am – 5pm, Monday – Friday, or
send us an email anytime at Support@BigBattery.com.
All batteries are built to last a minimum of 10 years. We stand by the quality of our batteries. If any parts within our battery fail due to defects or manufacturing error within the next 10 years, we will fix or replace your battery free of charge. In addition, for the first year of the warranty we will even cover all shipping costs from/to your purchase address within the continental US.
BigBattery utilizes Tier 1 cells to provide the highest quality lithium battery packs in the USA. Depending on the model, use case and environment, your battery is designed to last between 3,500 – 8,000 cycles when used as intended within our published battery specifications.
This Warranty covers all battery packs from the “Date Of Purchase” from BigBattery for 10 years and
all accessories included for 30 Days.
No warranty registration is needed. Warranties are automatically recorded via an internal customer
database via serial number and QR code.
BigBattery provides a proprietary QR code on every battery. Scan this QR code with any phone to view
the Product Manual and Product Spec Sheet for your specific battery model. Providing these documents
to you in a digital format helps to protect our environment and provides you the most updated information
on your product in real time.
To start a warranty claim, please email us directly at Support@BigBattery.com to create a ticket. Include a written description of the problem and pictures if possible. Upon receipt, our Tech Support team will reach out to you within 24 – 48 hours to troubleshoot. If the battery has been purchased within a year if the issue being reported to BigBattery, you will be sent a Return Shipping Label at no cost. After the first year, you will have the option to pay for the shipping, or arrange your own shipping back to BigBattery. If the label is provided by BigBattery, please include a copy of this label in the return box or pallet when our 3rd party logistics provider arrives to pickup your return. All returns will be inspected prior to repair, replacement, or reimbursement, depending on the circumstances of return and availability of similar items. For detailed instructions, please review our Warranty Repair/Replacement Services section below.
This Warranty includes a 30-Day replacement for all accessories (Anderson connectors, wiring, chargers, etc.)
included with your battery. If product is not defective or damaged upon return, refunds will be offered based on
the purchase price of the unit minus a 20% restocking fee.
That’s OK! All our batteries come with a 30-Day money back guarantee. Returns will be subject to a 20% restocking
fee. Call or email customer service for a free shipping return label.
For batteries installed in a stationary structure, such as permanently mounted home and commercial solar batteries, the warranty is transferable as long as the battery remains at the original End User location, and the transferee submits a change of ownership request to BigBattery within 30 days of ownership transfer, and pays the $30 Transfer fee. To submit the transfer request, send the original purchase documentation and transfer purchase documentation to support@bigbattery.com. Timely submission is required for continued Warranty coverage.
For mobile batteries without permanent mounting options included with the battery, or installed or intended for mobile systems, the warranty is non-transferable unless a Warranty transfer request is submitted to Support@BigBattery.com within 90 days of the original purchase. No fee is required in this case.
Due to the shipping regulations of lithium batteries, please note that some battery returns may require special
documentation and packaging, and these instances could encounter extra fees if a customer is attempting to
return a battery not covered by our Repair and Replacement Policy.
This warranty does not cover damages resulting from misuse, abuse, accidents, alterations, or improper charging/
installation of our product. Please scan the QR code on your battery and read the Manual prior to installation and
charging. DIY modifications or damage due to gross negligence or abuse will void your Warranty.
Repair, replacement, and refunds for your purchase will only be possible after your returned battery
has been received and fully inspected at our facility.
In no event shall BigBattery, Inc. be liable for consequential damages due to breach of this Warranty.
If buyers are not satisfied for any reason after speaking with Level 3 Tech Support and/or our Customer Service team,
all original buyers may escalate dispute resolutions to our CTO for review. We aim to put our customers first, resolve
any issues, and ensure that all customers are happy with their purchase from BigBattery.
Rev. Feb 2024
10-Year Repair/Replacement Warranty Coverage Details: BigBattery, Inc. warrants the covered product to be free of all defects in material and workmanship for 10 years from the auto-registered date of purchase. This Warranty extends to the original buyer for the duration of 10 years.
All BigBattery batteries are designed to operate for a minimum of 10 years and require zero maintenance. Some BigBattery batteries can last up to 22 years depending on model, use case, and environmental variables.
BigBattery batteries are also guaranteed to hold a reasonable amount of capacity based on the time in service (see exclusion for details on limits). In the case of a diminished capacity claim, the customer has the option to return the battery to BigBattery for capacity testing. The battery will be fully bench tested to resolve the claim and a relevant full cycle test report will be provided to the customer. If the customer is deemed to be correct and the battery is diminished beyond the limits specified in the exclusion section, then the battery will be eligible for warranty resolution. The customer will not be responsible for the costs associated with testing regardless of the test results.
Within our 10-Year Warranty, BigBattery, Inc. will repair or replace, free of charge, any part proving defective in material or workmanship. All warranty repairs and service must be performed by an authorized BigBattery, Inc. technician, or at an authorized BigBattery, Inc. service facility (unless directed otherwise in writing by a BigBattery employee).
For the first year, the expenses related to returning and repairing a defective part assumed by BigBattery, Inc. within the Continental US include pickup, return shipping, repair, replacement and final shipping. This Warranty does not assume responsibility for disconnection, service interruption, or re-packing expenses per said return shipment. Customers with international warranty claims will need to cover the cost of shipping.
This warranty does not apply to any costs, repairs, or services for the following:
Contact BigBattery Tech Support, confirm the problem, and identify the solution with our team. If the battery needs to come back to BigBattery for repairs or parts replacement, Customer Service will offer to arrange to and from our repair facility.
The buyer is required to pack the product according to the directions provided by Customer Service. The buyer should carefully cover and pack the battery needing repair, preferably in the original packing materials, in the same format as previously delivered (box/pallet) together with a copy of the original purchase receipt. Please write descriptions and updated notes on the receipt to better assist Tech Support in processing your repair or replacement.
All emails, notes, and calls are saved to assist our team in providing a speedy resolution. If the shipping is arranged by BigBattery, BigBattery assumes all liability with their scheduled carrier for the safe transportation of this battery to and from our repair facility listed below:
Return Address:
BigBattery, Inc.
21314 Lassen Street
Chatsworth, CA. 91311
Customer must take pictures of the product(s) being returned prior to packing and email these pictures to Sales@BigBattery.com
prior to returning. Based on your pictures, BigBattery will be able to hold the logistics provider responsible for any potential damages
that could occur when the product is in transit.
Please safely pack your returned battery. Logistics carriers do NOT accept liability for unsafely packed batteries during transit.
To eliminate damage in transit, please use the original box and foam inserts provided. If the original packing is not available,
please pack your product in the same safe & secure format in which it was received via box/pallet for safe delivery to our repair center.
BigBattery assumes full responsibility to return your repaired and/or replaced batteries back to you. Transit will occur between your
physical address and our authorized service center located at 21314 Lassen St. Chatsworth, CA 91311.
This warranty shall be governed by and interpreted in accordance with the laws of the state of California. No employee or
representative of the manufacturer is authorized to provide any warranty in addition to those made in this agreement.
Rev. April 2023
FREE & FAST SHIPPING SAVE Hundreds Today with Free Shipping on All Orders. We Ship to ALL 48 Lower States (We do not ship to Puerto Rico, Hawaii, Alaska)
Lead Time - 3-7 Business Days Depending on Product - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.
Transit Time - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.
Our Shipping Partners: FedEx, UPS, Freight Club (among others)
We partner with the most reliable freight companies in the USA to ensure your order arrives safe and in a timely manner.
Your Item will ship from warehouses all across the United States to ensure fast and efficient delivery times for our customers.
If there are any delays regarding your product shipment, we will let you know in advance.
As soon as you place your order, you will receive an order confirmation e-mail. (please allow a few hours for this to come through in some cases) This means that we have received your order in our system and pre-authorized your credit card for the purchase.
As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.
If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail. If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.
If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at contact@topture.com
No Shipping outside the USA. (Some exceptions apply - if the website permits you to check out and enter your shipping address, you will receive your order. Some products in particular are available in Canada).
Our base "Curb-side" Pickup shipping is always completely free! This option usually takes between 5-15 days to arrive at your doorstep, after you have submitted your order.
Threshold Shipping: This involves the item being brought onto your porch, or into a sheltered/garage area.
To ensure that your package is properly delivered and that you receive your package within the time frames we advertise, please make sure that your address is correctly entered and includes all relevant and/or required information. The use of correct
abbreviations, street numbers, building or apartment numbers, and route information (if applicable) is critical for ensuring timely delivery. We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect or incorrectly entered at the time of purchase or not reachable by an 18-wheeler for heavy items without making an indication of that at the point of purchase.
Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should make note of it when signing for delivery. If your item(s) do arrived damaged please send photos of damage, box and SKU, along with a brief description of the damage to contact@topture.com and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 24 hours of arrival or the freight damage claim will not be valid. Any punctures, or visible signs of exterior damage must be reported within 24 hours.
1. Free Shipping: Enjoy complimentary standard shipping on 98% of our items, ensuring a hassle-free shopping experience without any hidden costs or surprises as you finalize your purchase. Should any shipping charges apply, they are clearly indicated on the product page for complete transparency and peace of mind.
2. No Sales Tax: The price listed on our website is what you pay, making your shopping experience hassle-free and more affordable.
3. Lowest Price Guarantee: Find a lower price online? We’ll match it! Just email us. Valid on all products, anytime. Shop with confidence at Topture!
4. Dedicated Customer Support: Our team of specialists are available to
assist you via phone, email, or live chat. We are here to provide clear information, support and guidance at every step of your shopping experience.
5. Manufacturer's Warranty: As authorized dealers for all our brands, you can rest assured that you'll receive the full manufacturer's warranty on all products you purchase from us.
6. Fast Order Handling: We usually dispatch orders within 2 business days and provide email confirmations with tracking IDs when your order is shipped.
7. Secure Payments: We use high-standard SSL encryption on all our pages, content, and data
to ensure a safe and secure shopping experience.
8. Hassle-Free Shopping Journey: From selecting the right products to ensuring their safe delivery and setup, we are with you every step of the way.
9. Best Price Guarantee: We always strive to offer you the best personal price possible. Just reach out and we'll be glad to assist!
10. No-Hassle Returns & Fully Insured Shipping: Every shipment is fully covered in case of a lost item or damage. Please refer to the Shipping & Returns tab to learn more about our policy.
11. 100% Safe and Secure Online Shopping: With SSL encryption technology, we guarantee 100% secure transactions. If you prefer to process an order over the phone, just call us at (833) 419-1774.