LITHIUM VALLEY warrants that subject to the exclusions and limitations set out below, our series of energy storage systems come with a warranty which includes:
1. 5 years of product warranty: LITHIUM VALLEY warrants that the hardware of electronics and enclosure (including battery cover, micro circuit breaker, BMS PCBA) will be free of defects caused by improper workmanship or defective materials and it will be starting from the original end-user purchase date if the customer is unable to provide adequate documentation of the original purchase, the warranty start date shall be 6 months after the product was manufactured.
2. 10 years of performance warranty: LITHIUM VALLEY warrants that the battery system retains either seventy percent (70%) of Usable Energy for ten (10) years, or for a Minimum Through Output Energy which is calculated from the earlier one of installation date or 6 months after battery system production date, whichever comes first.
1. The defect of the battery system shall occur within the battery system warranty period as determined above.
2. Any battery system failure, fault, or warning which leads to the system not working or working abnormally, must be reported by following the terms described in ‘HOW TO MAKE A CLAIM UNDER THE LITHIUM VALLEY LIMITED WARRANTY’ within two weeks of appearance.
3. The battery system shall be installed by a skilled person or 3rd party installer.
4. End User shall correctly operate and use the battery system according to the User Manual and Installation Guide.
5. End User shall provide proof of the original purchase of the battery system.
6. The installation of the Battery system for the End User shall be completed within a maximum of 6 months from the production date.
7. The charging temperature of the battery system must NOT exceed 0℃~50℃ and the discharging temperature of the battery system must NOT exceed -20℃~50℃. They shall not be exposed in an installed area to direct sunlight. The Battery system installation location must be ventilated by the requirements of the User Manual and Installation Guide.
8. This Warranty covers a capacity equivalent to one complete cycle per day. The Battery system is unsuitable for supplying life-sustaining medical devices or automotive applications.
9. The battery system shall be installed with a LITHIUM VALLEY brand inverter. If you want to use any other brand inverter, please check with LITHIUM VALLEY to make sure it’s compatible in advance.
If the claimant wants to make a warranty claim, please contact your local distributor where you purchased the battery system or the installer who installed the inverter for you. If the claimant was unable to obtain service from them or was NOT satisfied with their service, the claimant can escalate your service request by creating a service ticket and claim LITHIUM VALLEY via Please note, to deliver a friendly and timely service, LITHIUM VALLEY is cooperating with many of our distributors and installers all over the world. As such, please treat them as the default service channel of LITHIUM VALLEY and use these service channels to make your warranty claim; LITHIUM VALLEY will support and audit our service channel to ensure that we deliver a good service to our customers.
Please have the following information to hand as it may be required when contacting the local distributor.
1. Contact information of claimant, including the name of the person, name of the company, phone number, email address, and shipment address.
2. Information regarding all defective battery systems, including model No., serial number, installation date, and failure date. Please make a claim within one month from the failure date, otherwise, LITHIUM VALLEY will treat it as if you have abandoned the right to make a warranty claim.
3. Installation information, including brand, model, and several PV panels.
4. Error message on APP screen (if applicable) and additional information regarding the fault/error.
5. Description of actions before the failure and detailed information of previous claims (if applicable). LITHIUM VALLEY may arrange an on-site inspection to find out the root of the faults. The claimant is responsible for granting access, making time, and ensuring the safety of the review by a technician from LITHIUM VALLEY or an authorized third-party company. LITHIUM VALLEY reserves the right not to enter the site should the LITHIUM VALLEY technician consider it unsafe.
If a claim is received within the warranty period and a fault with the battery system is discovered that is covered under the warranty, LITHIUM VALLEY may, at its sole discretion, elect to
1. Fix the issue by changing configurations or updating software.
2. Repair the battery system by replacing it with spare parts.
3. Exchange the battery system for a battery system that is brand new or refurbished but at least functionally equivalent to the original battery system or an upgraded model which is either functionally equivalent or functionally superior to the original battery system. If the device is replaced within the warranty period, the remaining warranty period will be automatically transferred to the replacement unit. If the remaining warranty period is less than half a year after the replacement, it will be extended to a 6 months warranty. For every single battery system replacement case, the claimant must gather the necessary information and send the RMA report (by following LITHIUM VALLEY’s RMA template) to LITHIUM VALLEY to confirm the RMA request, prior to the battery system being exchanged.
4. If it’s proven that the problem was caused by faulty installation, LITHIUM VALLEY reserves the right to contact the original installer and request that they provide a solution to fix the issue before LITHIUM VALLEY’s intervention and may charge the subsequent cost to the original installer if they fail to provide a proper solution to fix this issue.
5. All parts of the battery system that LITHIUM VALLEY replaces shall become LITHIUM VALLEY’s property. If the battery system is found not to be covered by this Limited Warranty, LITHIUM VALLEY reserves the right to charge a handling fee.
Unless a special/unique agreement exists between LITHIUM VALLEY and the customer, the LITHIUM VALLEY limited warranty covers only the cost of hardware material required to get the device functioning again.
Transportation costs: in some areas, LITHIUM VALLEY will cover the outbound and inbound transportation costs by using normal ground transportation up to a total amount (please contact LITHIUM VALLEY for the rate). The claimant must cover any excess costs or any costs generated by using another method of transportation. In some of the cases, the claimant needs to organize the return of the allegedly defective battery system to LITHIUM VALLEY and should confirm with LITHIUM VALLEY the shipment schedule in advance. As battery systems need to be packaged in a reasonable condition, LITHIUM VALLEY suggests using packaging material that is the same size as the battery system package at the time of purchase. If the allegedly defective battery system is not returned within 4 weeks of the replacement unit being received by the claimant, or there's no damage found after checking the returned battery system, LITHIUM VALLEY will invoice the claimant for the replacement unit in addition to the delivery and associated service charges.
On-site service labor costs: in some areas or business cases, to encourage the claimant to use the installer’s facilities to fix the problem, LITHIUM VALLEY may, at its sole discretion, decide to offer a rebate (please contact LITHIUM VALLEY for the rate) to the claimant or local installer/electrician to cover the on-site service labor under the following conditions:
1. The rebate will be eligible ONLY to the party who has carried out on-site service for the allegedly defective battery system.
2. The allegedly defective battery system has been returned to LITHIUM VALLEY and is deemed to have workmanship or material defects upon testing and inspection by LITHIUM VALLEY.
3. The claimant must contact LITHIUM VALLEY before the site visit for authorization. If the site is a remote area or if the installer is unable to be on-site, LITHIUM VALLEY recommends the claimant find a local electrician to carry out the on-site service.
4. The service rebate must be claimed within 2 months of the date upon which the on-site service is authorized by LITHIUM VALLEY.
5. The total labor cost (including TAX/GST) shall NOT exceed a total amount (please contact LITHIUM VALLEY for the rate) per case.
All other costs including but not limited to compensation from direct or indirect damages arising from the defective device or other facilities of the PV system, or loss of electrical power generated during the battery system downtime are NOT covered by the LITHIUM VALLEY limited warranty.
The following circumstances may cause device defects, but are NOT covered by LITHIUM VALLEY’s limited warranty.
1. Normal wear and tear (including, without limitation, wear and tear of batteries).
2. Any defects that occur when the battery system warranty period has expired (excluding additional agreements of warranty extension).
3. Faults or damages due to faulty installations or operations, maintenance carried out against LITHIUM VALLEY instructions by an unauthorized installer. Unauthorized wiring or use with faulty or incompatible devices. Any changes to the installation are not done by the Installation Guide. Usage which does not comply with the safety regulations (VDE, IEC, etc.). Damage or defect caused by End User’s improper use, misuse, or abuse, which is non-conforming with User Manual.
4. Damage caused by End User deliberately or by the willful act.
5. Disassembly, repair, or modifications performed by a third-party company/person not authorized by LITHIUM VALLEY. Battery system modifications, design changes, or part replacements not approved by LITHIUM VALLEY.
6. Faults or damages due to unforeseen circumstances, man-made factors, or examples of force majeure including but not limited to stormy weather, flooding, overvoltage, pests, inappropriate handling, misuse, neglect, fire, water, lightning, or other acts of nature.
7. Vandalism, engraving, labels, irreversible marking or contamination, or theft.
8. Faults or damage caused by other factors not related to battery system quality issues.
9. Any rust that appears on the device’s enclosure is caused by harsh environmental conditions, accidents, and external influences. Faults or damage caused by exposure to sea coasts/saltwater or other aggressive atmospheres or environmental conditions without LITHIUM VALLEY’s written confirmation/approval before the installation.
10. Damage caused during transport, incorrect product installation, removal, exceedance of temperature range during use, and improper use.
11. End User fails to provide correct product serial number or product serial number is undecipherable or has been modified without permission by LITHIUM VALLEY.
12. Defects of Product arise due to renewal of the national or regional laws or regulations.
13. Product failure is not reported to LITHIUM VALLEY within one month of appearance.
Any defects that occur after the expiry of the warranty period, or which occur within the warranty period but which fall into the warranty exceptions conditions above, are known by LITHIUM VALLEY as out-of-warranty cases. For all out-of-warranty cases, LITHIUM VALLEY may charge an on-site service fee, a parts fee, labor costs, and a logistics fee to the customer, including any/all of:
1. On-site service fee: cost of travel and time for the technician to deliver on-site service and labor cost for the technician, who is repairing, performing maintenance on, installing (hardware or software), and debugging the faulty battery system.
2. Parts/materials fee: cost of replacement parts/materials (including any shipping/admin fee that may apply).
3. Logistics fee: cost of delivery and any other expenses incurred when defective battery systems are sent from the user to LITHIUM VALLEY or/and repaired battery systems are sent from LITHIUM VALLEY to the user.
The LITHIUM VALLEY Limited warranty terms and conditions only apply for the devices which are originally purchased from channels authorized by LITHIUM VALLEY and installed in the destination defined within the international market (mainland China, Hong Kong, Macao, and Taiwan are excluded), unless there are specially stipulated warranty terms and conditions between LITHIUM VALLEY and the direct purchaser. For any units sold for one country/region but installed in another country/region, the warranty will become invalid if LITHIUM VALLEY does not provide written confirmation/approval before the installation.
This limited warranty applies to the battery system which is sold and installed after July 2020. It is the end user’s sole and exclusive remedy against LITHIUM VALLEY and LITHIUM VALLEY’s sole and exclusive liability in respect of defects in the battery system. This limited warranty replaces all other LITHIUM VALLEY warranties and liabilities, whether oral, written, (non-mandatory) statutory, contractual, in tort, or otherwise, including, without limitation, and where permitted by applicable law, any implied conditions, warranties, or other terms as regards satisfactory quality or fitness for purpose. However, this limited warranty shall neither exclude nor limit any of your legal (statutory) rights under the applicable national laws. To the extent permitted by applicable law(s), LITHIUM VALLEY does not assume any liability for any loss of, damage to, or corruption of data, for any loss of profit, loss of use of battery systems or functionality, loss of business, loss of contracts, loss of revenue or loss of anticipated savings, increased costs or expenses or any indirect loss or damage, consequential loss or damage or special loss or damage, or punitive loss or damage. To the extent permitted by applicable law, LITHIUM VALLEY’s liability shall be limited to the purchase value of the battery system. The above limitations shall not apply in case of gross negligence or intentional misconduct of LITHIUM VALLEY or case of death or personal injury resulting from LITHIUM VALLEY’s proven negligence.
*Manufacturer’s warranty is a basic warranty promise from LITHIUM VALLEY to the end users. In some countries/districts, end users may receive an additional warranty promise (which should be at least equivalent to the manufacturer’s warranty) which is provided by LITHIUM VALLEY’s local distributor; should any claims arise in this respect, please direct them to the local distributor. Please note this LITHIUM VALLEY limited warranty statement may NOT be the latest version, please refer to the latest version of the LITHIUM VALLEY limited warranty by visiting our global website via https://en.LITHIUMVALLEY.com/warranty.asp
*Usable Energy (KWh) needs to be measured by following the testing conditions and methods in Appendix
Capacity measurement condition: Ambient temperature: 25~28℃
Charge / Discharge method:
1. Discharge the battery with constant current until the battery reaches the end of discharge voltage or battery self-protection automatically.
2. Lay aside the battery for 10mins.
3. Charge the battery with constant current and constant charge voltage until the battery self-protection automatically.
4. Lay aside the battery for 10mins.
5. Discharge the battery with constant current until reaches the end of the discharge voltage or battery self-protection automatically. Calculate discharged capacity. Monitor current timely. (If it's constant current.)
6. Calculate the formula: Current Capacity = Discharge time × Constant current value.
7. Charge the battery
