flying belgian
Well-known Member
Grain truck has 3-12 volt batteries. Don't know what group but it doesn't matter. Don't know how old. I had the truck 4 yrs. and they were in there when I bought it. About a month ago I left the back up light on. When I came to it 4 days later batteries were completely dead. Slow charged them for 2 days and it started right up but they won't hold charge. Come back in 2 days and they are run down and truck won't start. Did leaving the light on cause their demise? Do I assume all 3 are shot? Do I have them load tested in the hopes that only 1 is shot? Because of their age do I just bite the bullet and buy 3 new? These are sealed maint. free batteries.