This video shows battery installation and removal for the Blink Indoor (1st Generation)  camera, XT2 and XT cameras, plus Sync Module setup.

Inserting batteries in XT and XT2

For more information on battery life, click here.

* A new set of non-rechargeable 1.5v AA lithium batteries should last for a total of 40,000 seconds (~11 hours) of motion-activated video and/or live video. We define standard or typical use as approximately 10, 5-second video events per day.