> Blink Video Doorbell, Outdoor and Indoor (gen 2), and XT2 cameras can expect battery life of up to 2 years, based on 5,882 seconds of Live View, 43,200 seconds of motion-activated recording and 4,788 seconds of Live View with two-way talk. This is roughly 70 seconds per day. For the Indoor (gen 1) and XT cameras, 2 years of typical use is defined as 40,000 seconds of Motion Clips and Live View. This is approximately 50 seconds per day.
Ahh 6 hours of continuous recording. That's a lot more reasonable. You could build something similar by combining a low power PIR sensor with a camera
I found the Blink camera was the best for a battery camera in terms of startup on PIR detection. In comparison my newer Eufy and Arlo cameras take a second or two (sometimes more) and have much less battery life.
The downside on the Blink is that you have to buy high end lithium AA batteries