From my experience with Kinetics you want to wear them fairly regular to keep some charge in them @thor447 fixed mine up with a new factory "battery" and I theorize that I let it run all the way down too many times and it basically died. It isn't that old either. It'll still fire up and run, but no matter how much you shake it to charge it, it'll only run a few minutes.Been posting mostly in the pocket dump thread - but have not worn this watch in a while and due to it being a kinetic I figured it was time to charge it