My backup battery unit starts to beep. I disconnect it for a few minutes, hours, days. Re-connect. All is fine for a few weeks. Then it starts again. I've checked the battery and it is not empty. It is also not very old (less than a year). I am starting to think the unit might be bad because I don't know what else it could be.
Any ideas? Yes, i know I can remove it altogether if I don't want it, but I'm not asking for that option right now.
Thank you.