If certain goods are defective or broken, below the satisfactory level of quality, not in accordance with the description of the goods, or different from what was ordered, customers may request for a return or refund within 7 days from the date of receipt. Should you have any enquiries, please contact our customer service team. batteries Policy 1. Terms of Service All products can be returned and applied for free repair service if subject to no man-made damage performance failure within one year from the date of purchase. Please provide effective proof of the product problem (picture or video), send it to our customer service email address, and return the battery according to the instructions to obtain free repair service. *Note: Rechargeable Battery is a Consumable product. Depending on the application and usage mode, it is normal that the maximum capacity of all rechargeable batteries will gradually decrease over time. Therefore, changes in battery capacity are not covered by the warranty.* 2. Warranty Procedure ①Contact customer service→②Customer service check→③Return product→④Exchange process 1) Contact customer service: Please click "Contact Us" for further assistance. 2) Customer service check: Once our after-sales customer service approves your request, we will send you the RMA (Return Merchandise Authorization) number to your email address accordingly. Please mark/print/write the RMA number on the outside of the shipping package. Tips: An RMA (Return Merchandise Authorization) number is required for all returns. Our after-sales department will not accept your returns without an RMA number. 3) Return product: The RMA number will be valid for 30 days once issued, within which time the returned product(s) must be received by us. Please provide us with relevant courier(postal service preferred) and tracking information when you ship it out, so that we can track your return package. 4) Exhange Process: After receiving the returned package, our technical department will check the returned items. We will reschedule the battery within 2-7 working days after receiving the goods. Note: reserves the right to exchange if the item is out of warranty coverage. 3. Warranty Details The following conditions are not covered by the battery warranty: ① Batteries ordered from other merchants. ② Products that are out of warranty. ③ Damage caused by improper operation or insufficient protection of the customer. ④ Damage caused by fire, flood, war, violence or any similar incident. ⑤ Removal the warranty sticker or tamper with the internal battery pack. ⑥ Modify or service through a professional outside of us ⑦ The battery has decreased in capacity due to long-term use.