Get a second rechargeable battery pack for your Video Doorbell 2, Video Doorbell 3, Video Doorbell 3 Plus, Spotlight Cam Battery, Spotlight Cam Solar, Stick Up Cam Battery (all generations), Stick Up Cam Solar (all generations), Solar Floodlight or Peephole Cam so you'll always have backup power. Always have backup battery power at home. To charge your device, simply press the tab to release the Battery Pack and connect it to a micro-USB cable. Keeps your device charged for up to six months depending on device type, motion settings and usage Swaps in and out of your device with a quick-release tab Works with Video Doorbell 2, Video Doorbell 3, Video Doorbell 3 Plus, Spotlight Cam Battery, Spotlight Cam Solar, Stick Up Cam Solar, Stick Up Cam Battery, Solar Floodlight and Peephole Cam