In the unlikely event you are having an issue with one of our batteries, we have
developed a simple Warranty & Return Policy servicing all customers in the USA.
1. Length Of Warranty All our batteries come with a 12-Year Repair/Replacement Warranty. If our batteries malfunction due to component or manufacturing error, the product will be repaired or replaced.
2. Full Lifetime Tech Support & Customer Service We provide FREE Lifetime Tech Support & Troubleshooting Service for all BigBattery Products. If you have any questions or need any help, simply call us at (818) 280-3091 from 9 am–5 pm, Monday–Friday, or send us an email anytime at Support@BigBattery.com.
3. Free Repair & Replacement We stand by the quality of our batteries. If any parts within our battery fail due to
defects or manufacturing error within 12 years, we will x or replace your battery at no cost.
4. Highest Quality Guarantee BigBattery utilizes new Tier-1 cells and vetted component suppliers to manufacture the
highest quality lithium battery packs in the USA. Depending on the model, use case, and environment, your battery is designed to last between 5,000-8,000 cycles when used as intended within our published battery specifications.
5. Covered Products This warranty covers all battery products from the “Date Of Purchase” from BigBattery
for 12 years and all included accessories for 1 year.
6. Automated Warranty Registration No warranty registration is needed by the customer. Warranties are automatically
recorded in our internal customer database via serial number and QR code.
7. Product Manuals & Specification Sheets 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 provides you the most
updated information for your product in real-time while not wasting paper to help
protect the environment.
8. Domestic Warranty Claim Support To start a warranty claim, please email us directly at Support@BigBattery.com to create a “Warranty Claim 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 of 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 third-party logistics provider arrives to pick up 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.
9. Returning Accessories This warranty includes a 1-Year Replacement for all accessories (connectors, wiring,
chargers, etc.) included with your battery. If products returned are not defective, refunds will be offered based on the purchase price of the unit minus a 20% restocking fee.
10. 30-Day Money Back Guarantee All our batteries come with a “30-Day Money Back Guarantee” on products.
Reimbursements will not include shipping costs or restocking fees. To enact your
“Money Back Guarantee” simply call (818) 280-3091 or email customer service at Support@BigBattery.com.
11. Transferability 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’s location, and the transferee submits a “Change Of Ownership Request” to BigBattery via email within 30 days from customer ownership. 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 or batteries used in 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. When batteries are eligible, transfer requests will be provided free of charge.
12. Return Hazmat Fee Due to the shipping regulations of lithium batteries, please note that some battery returns may require special documentation and packaging. In such instances, there may
be additional fees if a customer is attempting to return a battery that is not covered byour Repair and Replacement Policy.
13. Battery Abuse Disclaimer This warranty does not cover damages resulting from misuse, abuse, accidents,
alterations, or improper charging or installation of our product. Please scan the QR codeon your battery and read the manual prior to installation and charging. DIY modications or damage due to gross negligence or abuse will void your warranty.
14. Fraud Protection Repair, replacement, and refunds for your purchase will only be possible after your returned battery has been received and fully inspected at our facility. Please referenceyour “Warranty Claim Ticket” provided by customer service via email when contacting our customer service team at Support@BigBattery.com.
15. Limitation of Damages In no event shall BigBattery, Inc. be liable for any consequential, incidental, or special
damages arising out of or related to any breach of this warranty.
16. Warranty Details
- 12-Year Repair/Replacement Warranty Coverage Details: BigBattery, Inc. guarantees that its products will be free from defects in material and workmanship for a period of twelve (12) years from the date of purchase, automatically registered upon
purchase. This warranty is extended exclusively to the original purchaser for the entire 12-year duration. - Our batteries are engineered to operate for a minimum of 12 years with zero maintenance required. Depending on the model, usage, and environmental conditions, some batteries may last up to 22 years.
- BigBattery batteries are also warranted to maintain a reasonable capacity over time (refer to exclusions for specic limits). In the event of a diminished capacity claim, customers may return the battery for capacity testing. We will conduct a comprehensive bench test and provide a full cycle test report. If the battery's capacity is found to be below the limits specified in the exclusions section, it will qualify for warranty service. Customers will not incur any costs for the testing,
regardless of the results. - Under this 12-Year Warranty, BigBattery, Inc. will repair or replace any part proven to be defective in material or workmanship. All warranty repairs and services must be conducted by an authorized BigBattery technician or at an authorized BigBattery service facility unless directed otherwise in writing by a BigBattery representative.
- For the first year, the expenses related to returning and repairing a defective part will be assumed by BigBattery, Inc. within the Continental US, including pickup, return shipping, repair, replacement, and 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. - Defective Parts Return: For the first year, BigBattery will cover all expenses related to the return, repair, or replacement of a defective part within the Continental United States, including pickup, shipping, repair, replacement, and return shipping to the customer. This warranty does not cover costs related to customers' disconnection, service interruption, or re-packing. Customers with international warranty claims
(outside of the USA) are responsible for covering shipping costs to BigBattery. All returns should be shipped to our RMA HQ with proper paperwork included:
Return Address
BigBattery, Inc.
21314 Lassen Street
Chatsworth, CA 91311
17. Warranty Exclusions This warranty does not cover any costs, repairs, or services for the following:
A. Damage resulting from misuse, abuse, accidents, alterations, use beyond the
intended application, collision, dropping, or improper installation.
B. Use of the product outside of specied conditions or using a product undersized for the application.
C. Corrective work required due to repairs performed by anyone other than an authorized BigBattery technician, unless previously approved by BigBattery Tech Support.
D. Environmental damage, including exposure to caustic substances, saltwater, or outdoor elements, unless the battery is specically indicated for outdoor use on the Product Label, Specification Sheet, or Product Manual.
E. Claims of diminished capacity that are less than 12% within the first 5 years or less than 25% from year 6 to the 12-year warranty period.
F. Batteries that have not been charged for over six months. Regular charging is
necessary to maximize and maintain the battery’s lifespan.
G. On-site service calls from third parties. Warning: The warranty will be void if the battery is opened, disassembled, or improperly
altered unless explicitly directed by BigBattery for technical support.
18. Accessories BigBattery Inc. provides a limited warranty for all BigBattery accessories sold through our company, including but not limited to BigBattery chargers. This does not include products branded by another manufacturer, which are covered in Section 19. The BigBattery accessory warranty covers any defects in material or workmanship under
normal use for a period of one (1) year from the date of purchase. During the warranty period, BigBattery Inc. will repair or replace, at no charge, products or parts that prove defective due to improper material or workmanship under normal use and maintenance.
Warranty Coverage Conditions:
A. The warranty is valid only if the product is used properly with the compatible BigBattery Products.
B. Any modication, misuse, or improper installation voids this warranty.
C. This warranty does not cover normal wear and tear or damage caused by accidents, negligence, or unauthorized modications. For warranty claims, proof of purchase is required, and the customer must contact
BigBattery Inc. customer service at Support@BigBattery.com for further instructions.
19. Non-BigBattery Branded Products
Non-BigBattery branded products sold by BigBattery Inc. are covered exclusively by the original manufacturer’s warranty. The warranty terms and conditions for these products can be found on the respective product pages or by contacting our customer support
team. BigBattery offers technical support for all products BigBattery sells. Important Notes:
A. BigBattery Inc. does not extend or modify the warranty terms provided by the original manufacturer.
B. Any warranty claims, service, or support for these products must be directed to the original manufacturer as per their specied terms and conditions.
C. Customers are encouraged to review the manufacturer’s warranty policies to fully understand coverage, exclusions, and claim processes. For assistance in locating the manufacturer’s warranty details or for further inquiries, please reach out to our customer support team.
20. Warranty Claims Process To start a warranty repair or replacement, contact BigBattery Tech Support to confirm the issue and and a solution with our team. If your battery needs to be returned for
repair or replacement, Customer Service will help arrange shipping to and from our repair facility. Please pack the battery securely, preferably in the original packaging, and include a copy
of your original purchase receipt with detailed notes about the issue. Follow the packing instructions provided by Customer Service (Support@BigBattery.com / (818) 280-3091). We record all communications to ensure a quick resolution. If BigBattery arranges the shipping, we take responsibility for the safe transportation of your battery to and from our repair facility:
Return Address
BigBattery, Inc.
21314 Lassen Street
Chatsworth, CA 91311
21. Return Packing Instructions Customers must take pictures of the product(s) being returned prior to packing and email these pictures to Sales@BigBattery.com. These pictures allow BigBattery to hold the logistics provider responsible for any potential damages that could occur during transit.
Please safely pack your returned battery. Logistics carriers DO NOT accept liability for unsafely packed batteries during transit. To prevent damage, use the original box and foam inserts provided. If the original packaging is not available, pack your product in a similarly safe and secure format, using a box or pallet for delivery to our repair center. BigBattery assumes full responsibility for returning your repaired and/or replaced batteries to you. Transit will occur between your physical address and our authorized
service center located at 21314 Lassen St., Chatsworth, CA 91311.
22. Legal 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 the terms outlined within this agreement. Rev. June 2024
