Warranty Policy
Battery Warranty Policy
To ensure your rights and interests are protected, the following terms specify the conditions under which batteries must be returned for warranty assessment
1、Expired Warranty：
The product has exceeded the 12-month warranty period from the counting from the day of receiving the goods.
2、Improper Storage：
Batteries shipped at partial charge (single cell voltage: 3.8V) that are stored for over 6 months without maintenance, resulting in excessive voltage difference or over-discharge.
3、Customer-Induced Damage：
Physical damage caused by mishandling (e.g., dropping, puncturing, or crushing).
4、Misuse Beyond Specifications：
（1）Over-discharge or overcharge.
（2）Exceeding the maximum allowable discharge current (C-rate).
（3）High-temperature storage or long-term storage at full charge.
Note：Violation of usage guidelines voids warranty eligibility.
5、Determining Whether the Battery Needs to Be Returned Requires the Following Basic Information:
1、Order screenshot;
2、Single-cell voltage (measured by a voltage tester, multimeter, charger display, etc.);
3、Total voltage of the plug's positive and negative terminals (measured by a multimeter);
4、Battery appearance photos or videos;
5、Customer usage habits (e.g., charging method, whether the charger has balancing functionality, charging current, discharge current, discharge cutoff voltage, storage temperature, whether it is stored fully charged, etc.).
Note：The above information should be provided in the form of photos, videos, or other means and will serve as the basis for determining whether the battery needs to be returned.