Please Note: Custom key production at the factory is a complex and precise process. The entire customization and delivery procedure may take 10-20 days. Kindly wait patiently. If you have any questions, please contact us via the "Contact Us" section on the website support page. Hikeep e-bikes Battery Key Q:Hi how can I order a extra set of keys for my Hikeep e-bikes I purchased? Hikeep e-bike A: Yes, of course!Let me tell you how to do it: First, provide the order number and order screenshot of your purchase, hen provide a picture of the battery key port. (As shown in Figure 2) 1.Battery key: There is a letter + number code(K0**) on the metal ring of the battery key socket, and you need to provide a clear picture, as shown below. 2.Throttle Switch key: We will send you a brand-new throttle and two keys.. Then purchase through the following link:Hikeep Ebike Twist Throttle To ensure that the key can be fully matched, please be sure to submit the above information to customer service.