I just hooked up a 220D 2 bank on brand new Bats. The Bats checked at 12.7 volts when i put them in. When I plugged charger in The yellow lights came on for a few minutes,. then went to flashing yellow they been flashing for 5 hrs. How long does it take to turn green.
These were almost fully charged new Bats. Its a 10 amp per bank charger How long would it take on discharged bats? I would think if they had 12.6 volts when put in it shouldnt take more than an hour or two

