Yesterday morning I asked this question. Will keeping the camera constantly plugged into the mains fry the battery or the camera ? Thanks everyone, I got great replies. I also sent a pm to Arlo Smart home technical asking the same question, and they came back with this. Hello Marie, You can leave the battery inside the camera even while it is plugged in to power. It has a smart feature to not overcharge the battery once it reaches a certain limit. Regards, RM 8:02 AM Chat Conversation End