OK so i have a 2 year old walmart flooded deep cycle group 24. Ive been charging it for about a month now on a trickle 1 amp battery
maintainer. the charger is supposed to shut off at 14v. i keep checking it and one day it will show 13.5 and other days it will be back down to 11 or 12v. when i got the battery
with the trailer the top plates were not covered all the way with water. could it be a messed up battery
? the only other thing is it has an old style 5w solar panel
from 1994 on it, could the old panel not have a reverse flow diode and be taking battery power on cloudy days? I'm totally stumped at this point.