yandeltx wrote:Are you saying you just plug it in and leave it? If you are asking me, yes. I have a Noco and leave it plugged in all the time. Two weeks ago I forgot to plug in the charger for the cranking battery. After 10 days, it was at 10.8 volts. My engine is 1999 200 EFI. I turn off main power switch and all electronics. There is still a very tiny spark when I disconnect the large wire, either red or black, so there is a small drain at all times.