[DonMo]

Joe, you are definitely overcharging. 12.6 off is good, over 15V is higher than normal.

Dave, just be careful and remove the wires from your battery, at least the positive. There are wires in there that are a little challenge to manage just read a bunch on pelican first then go after it slowly and you will be fine. There is a tool that helps taking the bolt off of the fan sprocket, you might want to find one, borrow or buy, I found one on flea bay, I am sure Pelican sells one.