2 keys a pair To lock the battery of Ridingtimes Electric Bike Note: Each e-bike key is custom-made to match your unique lock. Production takes approximately 20 days before shipping. Thank you for your patience! To ensure we provide you with the correct battery key, we kindly ask you to confirm the model of your ebike and battery. Please send information below to support@ridert.com: The model of your ebike. Pictures of the number on battery key hole. Please be aware that all parts and accessories are final sale — no returns or exchanges. Delivery may take 15 to 30 days.