Charging the Camera

I just got my outdoor cameras (4 of them). The app shows that they need to be charged, do I need to turn them off to charge them?

I would. I always just left them on while charging, but this last time one of my cameras had an issue with that, it seems, as it was still showing 95% in the app 2 days later, but was showing offline and wouldn’t come back online. Wouldn’t even turn on when I toggled it off and back on. So I kept it off and recharged it that way, and issue resolved.

They blink red while charging, and move to solid red when charged.