Forum Discussion

jeffwhite's avatar
jeffwhite
Explorer
Oct 26, 2015

battery run dry, any good?

I just pulled out 2 6V golf cart batteries out of my motorhome that wasn't used for quite awhile. The two 6V golf cart batteries were dry. Should I even bother with trying to put something in there (sulfuric acid?????)or are they not worth trying? jeff
  • Add distilled water, not acid. Add enough to just cover the plates, then charge. After charging add more distilled water to the bottom of the neck.

    Try it, the only cost is some distilled water and some time. You did damage the plates, the question is how much damage.
  • jeffwhite wrote:
    I just pulled out 2 6V golf cart batteries out of my motorhome that wasn't used for quite awhile. The two 6V golf cart batteries were dry. Should I even bother with trying to put something in there (sulfuric acid?????)or are they not worth trying? jeff
    It couldn't hurt to try. Don't add acid. Just use distilled water.
  • Dry is bad, dry and dead is even worse. You can prolong the agony, fill'm up, charge'm, and deal w/ 1/2 assed performance, or go buy new ones and feel a whole bunch better. The price of a tank of gas, buys a battery.
    And while you're buyin, treat your new batts w/ a new PD converter,.....so they don't run dry again.
  • RoyB's avatar
    RoyB
    Explorer II
    I have never had much luck bringing them back. When this happens it most often shorts out internal cores of the batteries. Neighbors are always bringing me their dead batteries to try to bring them back to life. Running higher pulsing type charging voltages may break loose the shorted out cores but this always gets the batteries very hot and they may explode on you.

    We have only had this happen to us with our battery bank in 2008 when we first got our OFF-ROAD POPUP camper along with our larger battery bank. The provided on-board converter/charger was suppose to be a smart mode charger but never went into smart mode charging and always only produced 13.6VDC charging voltages. After loosing one of the batteries to being boiled out of fluids I changed out the converter/charger unit to a good PD9260C unit which always goes into the proper smart mode charging sequences. Never had a boiled out battery after doing this since early 2009.

    I still check my batteries fluid levels on a scheduled basis and always find them in good condition. Batteries are just too expensive for me not to do this simple check every couple of weeks over the winter months when in always ON storage...

    Roy Ken
  • There's "dry" then there's "Dry" then there is "DRY".

    More meaningful terminology is the liquid measure of water it took to refill them.