warranty period

Total Duration: 10 years limited warranty from the original purchase date.

Year Range

Warranty Support

Shipping Policy

Year 1–2

Full replacement (whole unit replacement, no fees charged)

Free

Year 3–5

Replacement or repair of components

Customer bears one-way

return shipping

Year 6–10

Replacement at depreciated price (10% depreciation per year, based on original purchase price) or free repair

Customer bears one-way

return shipping

warranty period

Total Duration: 10 years limited warranty from the original purchase date.

Year Range

Warranty Support

Shipping Policy

Year 1–2

Full replacement (whole unit replacement, no fees charged)

Free

Year 3–5

Replacement or repair of components

Customer bears one-way

return shipping

Year 6–10

Replacement at depreciated price (10% depreciation per year, based on original purchase price) or free repai

Customer bears one-way

return shipping

coverage scope

Kindly note: If a product is repaired or replaced under this limited warranty, the remaining period of the original warranty still applies to the repaired or replaced product. Under no circumstances will the warranty period be extended due to repair or replacement.

Quality Issues

 (Non-Human Damage Only)

Handling Methods 

(per warranty phase)

Cell failure

Full unit replacement

BMS failure or communication abnormalities

Free repair or component replacement (e.g., BMS or communication sub-board)

Abnormal self-discharge, inability to charge, or significant capacity loss (exceeding 20% of the initial nominal capacity, measured by 0.5C discharge test)

Replacement at depreciated price

Issues caused by official firmware upgrades

coverage scope

Kindly noted: If a product is repaired or replaced under this limited warranty, the remaining period of the original warranty still applies to the repaired or replaced product. Under no circumstances will the warranty period be extended due to repair or replacement.

Quality Issues 
(Non-Human Damage Only)

Handling Methods 
(per warranty phase)

1

Cell failure
 

1

Full unit replacement

2

BMS failure or communication abnormalities



 

2

Free repair or component replacement (e.g., BMS or communication sub-board)

3

Abnormal self-discharge, inability to charge, or significant capacity loss (exceeding 20% of the initial nominal capacity, measured by 0.5C discharge test)

3

Replacement at depreciated price

4

Issues caused by official firmware upgrades

Service Locations and Shipping Policy

Service Locations and Shipping Policy

Opening hours

  • U.S. mainland: Handled by local warehouses or authorized distributors
  • Europe/UK: Supported via overseas warehouses or third-party technical partners
  • Other regions: Remote diagnosis and parts shipment. If no local support is availableguidance will be provided.

Shipping Instructions

  • Customers are responsible for one-way return shipping costs. Risk during transportation is borne by the customer, and insured shipping is recommended.
  • Replacement units or components are covered by a 90-day warranty from the replacement date, or the remaining original warranty (whichever is longer).

Warranty Activation

To ensure your warranty is valid and service requests can be processed smoothly, 

please note the following:

Title

Provide Proof of Purchase

Original proof of purchase (order number/invoice) must be provided

 

 

 

Activate Online

Online warranty activation within 30 days of purchase is recommended (not mandatory)

 

 

Faster After-Sales Support

Activation helps expedite after-sales service and facilitates information matching

Contact: essvipsupport@eco-worthy.com.cn

Follow Installation Guidelines

Customers must comply with installation standards as outlined in the ECO-WORTHY (Battery User Manual)

 

 

Warranty Activation

To ensure your warranty is valid and service requests can be processed smoothly, please note the following:

Title

Provide Proof of Purchase

Original proof of purchase (order number/invoice) must be provided

 

 

 

Activate Online

Online warranty activation within 30 days of purchase is recommended (not mandatory)

 

Faster After-Sales Support

Activation helps expedite after-sales service and facilitates information matching

 

Follow Installation Guidelines

Customers must comply with installation standards as outlined in the ECO-WORTHY (Battery User Manual)

One-time transfer is supported, irrevocable once completed. For special cases, please
contact customer service for evaluation.

Warranty Transfer Policy

Once approved, the new owner will inherit the remaining warranty. If expired at the time of transfer, no warranty service will be provided. Provided information must be authentic; ECO-WORTHY reserves the right to deny service in case of falsification. Warranty terms remain consistent with the original and apply only to products sold through authorized ECO-WORTHY channels. Customers should retain related documents and present them when requesting after-sales service.

Conditions for Transfer

Battery remains at its original installation site

Completetransfer proof and installation photos must be provided (or equivalent documentation if unavailable)

Registration of transfer via official after-sales portal

Warranty Transfer Policy

One-time transfer is supported, irrevocable once completed. For special cases, please
contact customer service for evaluation.

Once approved, the new owner will inherit the remaining warranty. If expired at the time of transfer, no warranty service will be provided. Provided information must be authentic; ECO-WORTHY reserves the right to deny service in case of falsification. Warranty terms remain consistent with the original and apply only to products sold through authorized ECO-WORTHY channels. Customers should retain related documents and present them when requesting after-sales service.

Conditions for Transfer

- Battery remains at its original installation site

- Complete transfer proof and installation photos must be provided (or equivalent documentation if unavailable)

- Registration of transfer via official after-sales portal

exclusions & appendix

1.The warranty becomes void under the following circumstances (including but not

limited to)

- Disassembly, repair, or tampering by unauthorized personnel

- Incorrect wiring, reverse connection, or improper parallel connection (refer to the product manual for parallel specifications)

- Use in unsuitable environments (extreme temperature, humidity, flooding, direct sunlight, etc.; see product manual for appropriate conditions)

- Use in non-standard applications (e.g., motor starting, automotive vibration conditions, etc.)

- Missing, damaged, or falsified battery serial number

2.This limited warranty does not apply to defects or insufficient energy capacity caused

by

- Abuse, misuse, negligence, or failure to install, operate, maintain, or repair in accordance with ECO-WORTHY product manuals/specifications

- Accidents or force majeure events (fire, flood, earthquake, lightning, etc.)

- Unauthorized opening of the product casing

- Unauthorized modifications (via physical means, programming, or otherwise)

- Unauthorized relocation and reinstallation from the original installation site

3.Additionally, this warranty does not cover

- Normal wear and tear, or cosmetic damage not affecting product performance (scratches, dents, etc.)

- Noise or vibration not excessive or abnormal and not affecting performance

- Damage or performance degradation occurring after the warranty expires

- Theft of ECO-WORTHY products or components

4.Modifications and Waivers

No individual or entity (including ECO-WORTHY employees or authorized representatives) may alter or waive any part of this limited warranty. ECO-WORTHY may occasionally cover certain repair costs (not included under this limited warranty), whether for a specific product model or individual case. ECO-WORTHY reserves the right to take such actions without being obligated to extend similar coverage to other users.

5.Liability Limitation

ECO-WORTHY shall not be liable for any indirect, incidental, special, punitive, or consequential damages arising from or related to this limited warranty, regardless of legalaction, and whether or not ECO-WORTHY has been advised of such damages. ECO-WORTHY’s liability under any claim related to this warranty shall not exceed the amount paid for the product. Some states do not allow or limit the exclusion/restriction of damages, so these limitations may not apply to you, or may apply only within certain bounds.

6.Governing Law

This limited warranty shall be governed by the laws of the state where the ECO-WORTHY

product is installed. In case of conflict with mandatory local laws, the local law shall prevail.

All other terms remain valid.

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exclusions & appendix

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1.The warranty becomes void under the following circumstances (including but not limited to)

- Disassembly, repair, or tampering by unauthorized personnel

- Incorrect wiring, reverse connection, or improper parallel connection (refer to the product manual for parallel specifications)

- Use in unsuitable environments (extreme temperature, humidity, flooding, direct sunlight, etc.; see product manual for appropriate conditions)

- Use in non-standard applications (e.g., motor starting, automotive vibration conditions, etc.)

- Missing, damaged, or falsified battery serial number

2.This limited warranty does not apply to defects or insufficient energy capacity caused by

- Abuse, misuse, negligence, or failure to install, operate, maintain, or repair in accordance with ECO-WORTHY product manuals/specifications

- Accidents or force majeure events (fire, flood, earthquake, lightning, etc.)

- Unauthorized opening of the product casing

- Unauthorized modifications (via physical means, programming, or otherwise)

- Unauthorized relocation and reinstallation from the original installation site

3.Additionally, this warranty does not cover

- Normal wear and tear, or cosmetic damage not affecting product performance (scratches,

dents, etc.)

- Noise or vibration not excessive or abnormal and not affecting performance

- Damage or performance degradation occurring after the warranty expires

- Theft of ECO-WORTHY products or components

4.Modifications and Waivers

No individual or entity (including ECO-WORTHY employees or authorized representatives)

may alter or waive any part of this limited warranty. ECO-WORTHY may occasionally cover

certain repair costs (not included under this limited warranty), whether for a specific

product model or individual case. ECO-WORTHY reserves the right to take such actions

without being obligated to extend similar coverage to other users.

5.Liability Limitation

ECO-WORTHY shall not be liable for any indirect, incidental, special, punitive, or

consequential damages arising from or related to this limited warranty, regardless of legalaction, and whether or not ECO-WORTHY has been advised of such damages. ECO-

WORTHY’s liability under any claim related to this warranty shall not exceed the amount

paid for the product. Some states do not allow or limit the exclusion/restriction of damages,

so these limitations may not apply to you, or may apply only within certain bounds.

6.Governing Law

This limited warranty shall be governed by the laws of the state where the ECO-WORTHY

product is installed. In case of conflict with mandatory local laws, the local law shall prevail.

All other terms remain valid.