Battery Bank Problems
Installed a 1800 watt off the grid system about 8 months ago. I have 3 X 4 - 6 volt golf cart batteries. When I first installed them they would charge up to 28.6 volts which would trigger the absorb charge and then the float. I did let the system sit unattended for about 60 day with everything off. It seem now that the battery bank will not charge above 26.4 volts. Is this a problem? I am running midnight charge controller. Do I have a bad battery in the bank?