Hey folks I need some help. I have a JohnDeere 125 Lawn tractor and after several days the battery is too low to start the engine. If I unhook the battery it stays charged. I did the amp test between the battery ground post and the cable and it shows 0.03. I started by unhooking the regulator and the meter showed 0.00 so I got a new one and it still shows a draw on the battery. Should I have 12 volt to the small red wire on the regulator all the time or only with the key on