Camera charge

I have two outdoor cameras. I recharged them at the same time and put back outside at same time. Now one is down to 20% and the other down to 90%. What is going on with the 20%?

Any ideas

Welcome to the Forum Community, @lsbrandt. The big drains on the cam are the amount of time spent viewing, recording or detection/ recording events. If you have one cam in higher traffic area, are recording or doing time lapse or getting more events it’s battery will drain faster.
Also, are both cams on the newest Firmware?