Step 1: Contact Technical Support

Please email Support@FSEbattery.com immediately.

The email must include: order number, product model, serial number, a detailed description of the issue, and clear photos or videos demonstrating the problem.

Step 2: Problem Diagnosis and Authorization

Our engineering team will analyze the information you provide and may provide remote technical support to attempt to resolve the issue.

If remote resolution is unsuccessful and a return is confirmed, we will issue you a unique RMA number and detailed return instructions (including a designated return address and hazardous materials shipping requirements).

Step 3: Safely Return Your Product

Safety first! Lithium batteries are considered hazardous materials and must be professionally and properly packaged according to our instructions and accompanied by the hazardous materials shipping documentation we provide.

Unauthorized and non-compliant return shipments are illegal and dangerous and will be rejected. Any resulting liability will be borne by the sender.

Step 4: Inspection and Handling

Upon receipt of the returned product, we will conduct an inspection to confirm the cause of the problem.

If the fault is confirmed to be our fault, we will cover the inspection costs and promptly arrange a replacement or refund (at your request). We will negotiate to reimburse you for the prepaid return shipping costs.

If the inspection results indicate a product not covered by the warranty (e.g., damage caused by human error or misuse), we will provide an inspection report and provide a solution (e.g., paid repair). The customer will be responsible for any shipping and repair costs.