GOODWE Limited Warranty for ESA Energy Storage System

OVERVIEW

GOODWE Technologies Co., Ltd (GOODWE) ESA Energy Storage System is a battery storage system designed for industrial usage. It comprises several components, including the control cabinet, the lithium-ion battery (Battery), the battery management system (BMS), and the control unit (ControlShield). The Battery itself consists of multiple lithium-ion cells organized into Battery Modules.

GOODWE provides the following warranties for the GOODWE ESA Energy Storage system (model GW125/261-ESA-LCN-G10), subject to exclusions and limitations:

• Product Warranty: For five (5) years, GOODWE warrants that the hardware of electronics and enclosure (including all Energy Storage system Components) will be free from defects caused by improper workmanship or defective materials. A ten (10) year product warranty is also available.
• Performance Warranty: For ten (10) years, GOODWE warrants that the Energy Storage system will retain either seventy percent (70%) of its *Usable Energy (261.48 kWh) or 6000 full charge cycles, whichever comes first. This warranty specifically covers the Battery Cells. Other components within the Battery Module and other Energy Storage system Components are covered only by the Product Warranty.
• Specific Component Warranty: A two (2) year limited warranty applies to the Liquid-cooled unit, Fire suppression system, and Lock cylinder. Five (5) or ten (10) year warranties may be available for these components.
• Enclosure Warranty (Standard): A two (2) year limited warranty for the enclosure is provided if the product is installed between 2 to 5 kilometers from the sea. This warranty is voided if the product is installed within 2 kilometers of the sea.
• Enclosure Warranty (C5 Class): A two (2) year limited warranty for the C5 enclosure is provided if the product is installed within 500 meters of the sea.

Warranties commence from the earlier of:

1. The date the product was first installed.
2. Six (6) months after the date of production.

*The charge cycles test conditions are: ambient temperature 20-35°C, <=90% Depth of Discharge (DOD).
*Usable Energy (kWh) test conditions are: ambient temperature 25±2°C, new battery 100% DOD, 0.5P charge/discharge power.
*C5 Corrosion Class follows IEC International Standards.

PRECONDITIONS FOR WARRANTY

For warranty claims to be valid, the following preconditions must be met:

1. The defect in the Energy Storage system must occur within the applicable warranty period.
2. Any Energy Storage system failure, fault, or warning that causes the system to not work or work abnormally must be reported within one month of its appearance, following the terms described in ‘HOW TO MAKE A CLAIM UNDER THE GOODWE LIMITED WARRANTY’.
3. The Energy Storage system must be installed by a skilled person or a certified third-party installer.
4. The End User must correctly operate and use the Energy Storage system according to the User Manual and Installation Guide.
5. The End User must provide proof of the original purchase of the Energy Storage system.
6. The installation of the Energy Storage system for the End User must be completed within a maximum of six (6) months from the production date.

If the equipment is not to be installed or used immediately, the storage environment must meet the following requirements:

• Do not unpack the outer packing box or discard the desiccant.
• Complete the equipment installation within three (3) days after unpacking. Pack and store the equipment using the original packing box if it is not installed.
• Stack the equipment in compliance with the labels and requirements on the packing box. Handle with caution to prevent them from falling.
• Keep the equipment away from flammable, explosive, and corrosive materials.
• Place the equipment in a cool location, away from direct sunlight.
• Store the equipment in a clean place, ensuring appropriate temperature and humidity levels with no condensation.
• Storage State of Charge (SOC): 50%-55%. Cycle the charge-discharge every six (6) months.
• Recommended storage temperature: 0℃ to 35℃ (for less than 12 months), -20℃ to 45℃ (for less than one month).
• Recommended storage humidity: 5% to 90% RH (no condensation). Do not install the battery if any moisture or condensation is present.

Additional operational requirements:

• The charging/discharging temperature of the Energy Storage system must not exceed -25℃ to 55℃. The installation location must be adequately ventilated as per the User Manual and Installation Guide.
• This warranty covers a capacity equivalent to two (2) full cycles per day. The Energy Storage system is not suitable for supplying life-sustaining medical devices or automotive applications.
• The Energy Storage system must be installed with a GOODWE brand inverter. For other brands, compatibility must be checked with GOODWE in advance.
• This Energy Storage System is not scalable; battery capacity cannot be expanded after installation.

HOW TO MAKE A CLAIM UNDER THE GOODWE LIMITED WARRANTY

To make a warranty claim, please contact your local distributor or the installer who supplied the Energy Storage system. If service cannot be obtained or is unsatisfactory, you can escalate your request by creating a service ticket via GOODWE's Zendesk portal.

GOODWE works with distributors and installers worldwide to provide timely service. Please use these service channels as the default. GOODWE will support and audit these channels to ensure quality service.

When contacting a distributor, please have the following information ready:

1. Contact Information: Claimant's name, company name, phone number, email address, and shipment address.
2. Defective System Information: Model number, serial number, installation date, and failure date. Claims must be made within one month of the failure date; otherwise, GOODWE may consider the claim abandoned.
3. Installation Information: Brand, model, and number of PV panels.
4. Error Information: Error message from the APP screen (if applicable) and additional details about the fault/error.
5. Failure Description: Description of actions taken before the failure and details of any previous claims (if applicable).

GOODWE may arrange an on-site inspection to identify the root cause of faults. The claimant is responsible for granting access, scheduling, and ensuring the safety of the inspection by a GOODWE technician or an authorized third-party company. GOODWE reserves the right to refuse entry if the site is deemed unsafe by the technician.

REMEDY

If a valid warranty claim is received, GOODWE may, at its sole discretion, provide one of the following remedies:

1. Fix the issue by changing configurations or updating software.
2. Repair the Energy Storage system by replacing faulty parts.
3. Exchange the Energy Storage system for a new, refurbished, or upgraded model that is functionally equivalent or superior to the original. If a replacement occurs within the warranty period, the remaining warranty period transfers to the new unit. If the remaining period is less than six months, it will be extended to six months. For each replacement, the claimant must submit an RMA report to GOODWE for confirmation before exchange.
4. If a fault is proven to be caused by faulty installation, GOODWE may contact the original installer to resolve the issue before intervening and may charge the installer for subsequent costs if they fail to provide a proper solution.
5. All parts replaced by GOODWE become its property. If the system is found not to be covered by this Limited Warranty, GOODWE reserves the right to charge a handling fee.

WHAT IS COVERED AND NOT COVERED?

Unless otherwise agreed, the GOODWE limited warranty covers only the cost of hardware material required to restore the device's functionality.

Transportation Costs: In some areas, GOODWE will cover outbound and inbound transportation costs via normal ground transport up to a specified rate. The claimant must cover any excess costs or costs incurred by using alternative transportation methods. In some cases, the claimant may need to arrange the return of the defective Energy Storage system to GOODWE, confirming the shipment schedule in advance. It is recommended to use packaging material identical to the original system package. If the allegedly defective Energy Storage system is not returned within four (4) weeks of receiving the replacement unit, or if no damage is found upon inspection, GOODWE will invoice the claimant for the replacement unit, plus delivery and associated service charges.

On-site Service Labor Costs: In certain areas or business cases, GOODWE may offer a rebate to the claimant or local installer/electrician to cover on-site service labor costs, subject to specific conditions:

• The rebate is eligible only for the party performing the on-site service for the defective Energy Storage system.
• The defective Energy Storage system must have been returned to GOODWE and deemed to have workmanship or material defects upon testing and inspection by GOODWE.
• GOODWE must be contacted prior to the site visit for authorization. If the site is remote or the installer cannot attend, a local electrician may be recommended for on-site service.
• The service rebate must be claimed within two (2) months of the on-site service authorization date.
• The total labor cost (including TAX/GST) claimed shall not exceed a specified amount per case.

All other costs, including compensation for direct or indirect damages, loss of profit, loss of use of the Energy Storage system or its functionality, loss of business, loss of contracts, loss of revenue, or loss of anticipated savings, increased costs, or expenses, are not covered by the GOODWE limited warranty.

WARRANTY EXCEPTIONS

The following circumstances are not covered by GOODWE's limited warranty:

1. Normal wear and tear, including battery wear and tear.
2. Defects occurring after the Energy Storage system warranty period has expired, unless an additional warranty extension agreement is in place.
3. Faults or damages due to: faulty installations or operations; maintenance performed by an unauthorized installer against GOODWE instructions; unauthorized wiring or use with faulty or incompatible devices; installation changes not conforming to the Installation Guide; usage that does not comply with safety regulations (e.g., VDE, IEC); improper use, misuse, abuse, or non-conformance with the User Manual.
4. Damage caused deliberately or by willful act of the End User.
5. Disassembly, repair, or modifications performed by a third-party company or person not authorized by GOODWE; Energy Storage system modifications, design changes, or part replacements not approved by GOODWE.
6. Faults or damages due to unforeseen circumstances, man-made factors, or force majeure events, 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, contamination, or theft.
8. Faults or damage caused by factors unrelated to the Energy Storage system's quality.
9. Rust appearing on the device's enclosure due to harsh environmental conditions, accidents, or external influences; faults or damage caused by exposure to sea coasts/saltwater or other aggressive atmospheres or environmental conditions without prior written confirmation/approval from GOODWE.
10. Damage occurring during transport, incorrect product installation, removal, exceeding temperature range during use, or improper use.
11. Failure by the End User to provide the correct product serial number, or if the serial number is undecipherable or has been modified without GOODWE's permission.
12. Product defects arising from changes in national or regional laws or regulations.
13. Product failure not reported to GOODWE within one month of its appearance.

OUT-OF-WARRANTY-CASE

Cases where defects occur after the warranty period expires, or within the warranty period but fall under the warranty exceptions, are considered out-of-warranty cases. For such cases, GOODWE may charge the customer for:

1. On-site Service Fee: Costs for technician travel, time, repair, maintenance, installation (hardware or software), and debugging.
2. Parts/Materials Fee: Cost of replacement parts/materials, including any applicable shipping/admin fees.
3. Logistics Fee: Cost of delivery and any other expenses incurred when defective Energy Storage systems are sent from the user to GOODWE or when repaired systems are sent from GOODWE to the user.

GEOGRAPHICAL SCOPE

These GOODWE Limited Warranty terms and conditions apply only to devices originally purchased through channels authorized by GOODWE and installed within the Europe market, unless specific warranty terms are stipulated between GOODWE and the direct purchaser. If units sold for installation in one country/region are installed in another country/region, the warranty will become invalid if GOODWE has not provided written confirmation/approval prior to the installation.

LIMITATION OF GOODWE's LIABILITY

This limited warranty applies to the Energy Storage system sold and installed after April 2025. It represents the end user's sole and exclusive remedy against GOODWE and GOODWE's sole and exclusive liability concerning defects in the Energy Storage system. This limited warranty supersedes all other GOODWE warranties and liabilities, whether oral, written, statutory, contractual, or otherwise. To the extent permitted by applicable law, GOODWE disclaims liability for any loss of data, profit, use of the Energy Storage system or its functionality, business, contracts, revenue, or anticipated savings, as well as increased costs, expenses, indirect loss, consequential loss, special loss, or punitive damages. To the extent permitted by law, GOODWE's liability shall be limited to the purchase value of the Energy Storage system. These limitations do not apply in cases of gross negligence, intentional misconduct by GOODWE, or death or personal injury resulting from GOODWE's proven negligence.

*Manufacturer's warranty is a basic promise from GOODWE to end users. In some countries/districts, end users may receive an additional warranty promise from a local distributor (which should be at least equivalent to the manufacturer's warranty). Claims for such additional warranties should be directed to the local distributor.
Please note that this GOODWE limited warranty statement may not be the latest version. Refer to the latest version on GOODWE's global website: https://en.goodwe.com/warranty.asp.
*Usable Energy (kWh) measurement follows the testing conditions and methods detailed in Appendix A.

Appendix A

Capacity measurement condition:

Ambient temperature: 25±2°C, new battery 100% DOD. Testing should be conducted after at least 12 hours of storage.

Charge / Discharge method:

1. Discharge the battery with a 0.2C constant current until any cell reaches the cut-off voltage.
2. Allow the battery to rest for 30 minutes.
3. Charge the battery with a 0.2C constant current until any cell reaches the cut-off voltage.
4. Allow the battery to rest for 30 minutes.
5. Discharge the battery with a 0.2C constant current until any cell reaches the cut-off voltage.

Repeat steps 2-4 three times. The discharge capacity of the third cycle will be considered the final capacity.