Description: Need a new battery lock? Since the battery lock and key are uniquely paired, they must be replaced as a set. We offer a brand-new lock and key combo to ensure perfect compatibility and top-notch security. Simple, fast, and hassle-free—get back on the road in no time! ?? Lost your key?If you only lost your key but still have the lock, please contact our customer service before placing an order. Provide your lock code and bike model, and we’ll help you get a matching replacement key. ?? All sales are final. No returns or cancellations.