How long is the battery lifespan of the Kami doorbell camera? The battery lifespan of the Kami doorbell camera is good for 2 to 3 months. Related articles How to reset the Kami doorbell camera? What's in the Box(Kami Doorbell) Charging and Inserting the battery of the Kami Doorbell Camera Alert Notifications in the YI/Kami app Kami Doorbell Camera Manual