SUNPAL ESS Warranty Policy
Sunpal Power Co., Ltd. (SUNPAL ESS) is committed to delivering reliable, certified battery energy storage systems for commercial, industrial and utility-scale projects worldwide. This policy explains our standard warranty coverage and how to submit a claim.
Standard Warranty Coverage
Warranty periods vary by product category and are confirmed in the sales contract or quotation for each project. Standard reference terms are as follows:
| Product Category | Standard Warranty Period |
|---|---|
| LiFePO4 Battery Packs / Battery Modules | 10 years, performance warranty to 70% capacity |
| PCS / Hybrid Inverter | 5 years |
| All-in-one ESS Cabinet / ESS Container (system-level) | 5 years |
| BMS, EMS and Control Components | 2 years |
| Auxiliary Components (HVAC, fire suppression, cabling) | 1-2 years |
The applicable warranty period begins on the date of commissioning or shipment, as specified in the project contract. Extended warranty options may be available upon request.
What Is Covered
- Manufacturing defects in materials or workmanship under normal use and operating conditions
- Failure to meet the performance specifications stated in the applicable product datasheet, subject to the terms of the sales contract
- Free repair, replacement of defective parts, or technical remediation, at SUNPAL ESS's discretion, for valid claims within the warranty period
What Is Not Covered
- Damage caused by improper installation, operation, maintenance, or storage not performed in accordance with SUNPAL ESS technical documentation
- Damage from misuse, accident, unauthorized modification, or use outside rated specifications
- Damage caused by force majeure events, including but not limited to fire, flood, lightning, earthquake, or other natural disasters
- Normal wear and tear, or degradation of battery capacity within specified performance tolerances
- Products that have been repaired or altered by parties not authorized by SUNPAL ESS
- Consequential, incidental, or indirect losses, including loss of revenue or project downtime, except where required by applicable law
How to Submit a Warranty Claim
- Contact our technical support team at ess@sunpalpower.com or via WhatsApp at +86 182 6991 2022 within a reasonable time after discovering the issue.
- Provide the following information:
- Order number or contract number
- Product model and serial number
- Date of installation or commissioning
- Description of the issue, including operating conditions at the time of failure
- Supporting photos, videos, or system diagnostic logs where available
- Preliminary assessment. Our technical team will review the submitted information and may request a remote diagnostic session or additional data to confirm the fault.
- Resolution. Once a claim is validated, SUNPAL ESS will coordinate a repair, replacement, or remediation plan according to the terms of the applicable contract and, where relevant, arrange shipment of replacement parts.
We aim to acknowledge all warranty claims within 2 business days and provide an initial technical response within 24hours.
Contact for Warranty Support
Email: ess@sunpalpower.com
Mobile / WhatsApp: +86 182 6991 2022
Headquarters: No. 398 Ganquan Road, Shushan District, Hefei City, Anhui Province, China