Battery does not hold charge

Received new Stick Up Cam and fully charged the included battery. When I installed the Cam yesterday, it gave me a few videos, mostly of me adjusting the camera. Then it stopped showing any updated videos, even though I purposely went in front of it and walked back and forth. I also tried the Live View, and there was nothing. I got the notification that the battery needed to be charged, even though it was fully charged when I installed the Cam. So I again charged the battery, which this time only took around 15 minutes to get the green light only status. Again, I inserted the battery and the app shows that the battery needs to be charged. I put in a different fully charged battery in case this one was defective, since I purchased three Cams. Same message. Weather is around 75 degrees, so that is not the problem. What am I doing incorrectly?