Carefully check each battery individually, use a hygrometer to check the specific gravity. If you find variations, you may have one or 2 bad cells. Check all of you connections at the batteries. Take each one off use a battery terminal cleaner, clean and replace, and tighten. Try charger and see if the results change. Also, I forgot to mention note ant cells that appear to be low on water, this could be an indication of a bad cell.
Hope this helps.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|