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? What's the battery life in normal conditions? Why does the battery drain so quickly? What are the battery specification and charging requirements with YI 4K+ Action Camera? How do I recharge the camera?