Where can I purchase the battery? We suggest you purchase from official YI website, Amazon or other major online retailer. Related articles What should I do if the camera does not charge? What should I do if the charging indicator light on the battery charger does not light up? Where I can purchase batteries for my Kami Wire-Free Outdoor Camera? Where are my files stored? How to maximize battery life for Kami Wire-Free Outdoor Camera? How do I download photos from the camera?