Well I pulled a DD (Kinda) cleaning the boat out getting ready for tomorrow. Unhooked all of the batteries and checked the water--added a tad to all of them--so after I finished with the first TM battery hooked it back up and I heard the TM beep beep--uh--oops. Went to the front of the boat and unplugged it. I haven't fished in a couple of week but did have the charger plugged in the whole time. First time i've done that since I've had the PD. That's what I get for picking at DD