I have two GC2 batteries that I did not check on when I should have. The few day ago, when looking at them I found I gassed out the water. I added water 1gal total. Put a charge on them( with big hopes). On the first check the SG was 11.50. I put the charger(6amp) back on them. Today they are showing 12.55. Still a way to go. IF I get them back to 12.775 does that mean I saved them or is that only show what is good to the plates that did not get exposed? I did leave them off the charger one night and in the morning I still have 12.7 volt on them. Or is load testing the only way to know if I was lucky? Thanks Gary

CT_WANDERER wrote: Or is load testing the only way to know if I was lucky? Thanks GaryIt would be in my world...but not at the auto parts store.

Wow, a full gallon.I doubt they will have much of their capacity left.Consider why they got so dry. Too high a float voltage in too much heat. Blame the converter/ charging source.Getting the Specific gravity back upto 1.275 and a resting voltage of 12.7+ might be possible.While people assume a load test requires a special tool, one basically performs a basic load test each night they camp without hookups.after they are as charged as you can get them. Use them as hard as you would camping and see if voltage can remain in the 12's or quickly falls to the 11's.Am not so sure how valid the autoparts store load testers are on Golf cart batteries anyway.A full attempt at recovery could be a waste of time, but feeding them 10 to 11 amps until voltage reaches 16v or SG 1.275+ is likely the only method that might work.

If they have a few years on them and having boiled them dry they won't last longIf you need new ones Sam's club in Manchester Ct has them at the best price. I bought two 3 years ago for our class A. we dry camp all summer at Hammonasset so they get used and charged constantly. No problems with them

Sorry double clicked and it went twice

Rub your Budda's Belly, and nail a chicken to your front door. Works as good as anything else sometimes...

Battery SG | Good Sam Community

13 Replies

cmarq
Explorer
Nov 10, 2015
If they have a few years on them and having boiled them dry they won't last long
If you need new ones Sam's club in Manchester Ct has them at the best price. I bought two 3 years ago for our class A. we dry camp all summer at Hammonasset so they get used and charged constantly. No problems with them
landyacht318
Explorer
Nov 10, 2015
Wow, a full gallon.

I doubt they will have much of their capacity left.

Consider why they got so dry. Too high a float voltage in too much heat. Blame the converter/ charging source.

Getting the Specific gravity back upto 1.275 and a resting voltage of 12.7+ might be possible.

While people assume a load test requires a special tool, one basically performs a basic load test each night they camp without hookups.

after they are as charged as you can get them. Use them as hard as you would camping and see if voltage can remain in the 12's or quickly falls to the 11's.

Am not so sure how valid the autoparts store load testers are on Golf cart batteries anyway.

A full attempt at recovery could be a waste of time, but feeding them 10 to 11 amps until voltage reaches 16v or SG 1.275+ is likely the only method that might work.
2oldman
Explorer II
Nov 10, 2015
CT_WANDERER wrote:
Or is load testing the only way to know if I was lucky? Thanks Gary
It would be in my world...but not at the auto parts store.

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Battery SG

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