Eufy sent me three replacement cameras that I have plugged in, but haven’t swapped them out yet with my original cameras. I noticed the replacements do pretty much what you experience. They will charge to 100%, start to discharge, and eventually start charging again. The problem is that sometimes it discharges to the point of switching to battery mode, and I lose the 24/7 recording. Eventually it will start charging again, and then I can switch it back to direct power with continuous recording. Overall, the replacements seem to be an improvement but the issue still resides.