Warranty Policy

Shenzhen Asol Battery Tech Co., Ltd. ("ASOL") stands behind the quality of every battery cell and pack we manufacture. This Warranty Policy describes the standard coverage we provide to business customers. Custom OEM/ODM projects may carry specific warranty terms agreed in the relevant sales contract, which prevail over this page where they differ.

1. Warranty Coverage

ASOL warrants that its products are free from defects in materials and workmanship under normal use and proper installation for the applicable warranty period, starting from the shipment date.

Standard LiFePO4 Deep-Cycle / Lead-Acid Replacement Batteries

The standard warranty period is 3 years.

Selected LiFePO4 battery models and projects may also be supplied with an optional extended warranty of up to 5 years at additional cost.

Availability and pricing for the extended warranty depend on the specific battery model, configuration, order quantity and project requirements.

Other Battery Products and Custom Projects

Warranty periods for other Special Battery Pack products, Li-ion battery packs, Li-Polymer batteries, cells and OEM/ODM projects may vary depending on the product design, application and project requirements.

The applicable warranty period will be confirmed for each specific order.

Warranty Confirmation

The warranty period applicable to each order is confirmed in the quotation, sales contract or product datasheet.

Where project-specific contractual warranty terms differ from this general Warranty Policy, the agreed sales contract shall prevail.

2. What Is Covered

• Manufacturing defects in cells, BMS, welding, wiring and assembly;
• Failure to meet the agreed electrical specifications under normal, rated operating conditions;
• Premature capacity loss beyond the normal range stated for the product (e.g., cycle-life rating).

3. What Is Not Covered

• Damage from misuse, abuse, dropping, crushing, fire, water ingress beyond the rated IP level, or improper installation;
• Over-charge, over-discharge, short circuit or use outside the rated voltage, current or temperature range;
• Unauthorized disassembly, repair, or modification of the cell, BMS or pack;
• Normal, gradual capacity fade within the rated cycle life;
• Cosmetic wear, or damage caused during the customer's own further assembly, transport or storage;
• Force majeure and acts beyond ASOL's reasonable control.

4. How to Make a Warranty Claim

1. Email info@asolbattery.com with your order/PO number, the product model, quantity affected, and a description of the issue;
2. Include supporting evidence where possible — photos or video, test data (voltage, capacity, IR), and the batch/serial labels;
3. Our engineers will review and respond, and may request the affected unit(s) be returned for analysis.

5. Remedies

For valid claims within the warranty period, ASOL will, at its option, repair, replace, or provide credit for the defective products. Replacements are shipped with your next order or by a method agreed between both parties. This warranty is the customer's sole remedy; to the maximum extent permitted by law, ASOL is not liable for indirect, incidental or consequential losses.

6. Returns & Shipping for Warranty

Return arrangements, freight responsibility and replacement logistics are agreed case by case. Lithium batteries must be returned in compliance with applicable dangerous-goods transport rules (UN38.3, correct packaging and documentation).