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 Where I can purchase batteries for my Kami Wire-Free Outdoor Camera? Kami Doorbell Mechanical and Digital Chime Compatibility List How long does it take the battery to recharge the Kami Doorbell batteries? Kami Doorbell Camera Manual Motion detection, Activity Detection Area and Person Detection settings for Kami Doorbell camera