Hello Everyone,
My mother has a 1991 ezgo marathon 36v golf cart.
she's been having some problems with it, some times I does not go just makes a click, can not seem to get it to 100% charge and it seems to drain down to 69% rather quickly sometimes up to 5% just sitting around over night after being charged.
I did a test last time I was there but the multimeter I was using its untrustworthy so will be taking another one over next time to retest.
however I noticed something on the batteries that makes me think the issue maybe in the batteries itself/charging system.
think the charger is a ezgo txt charger up to 25 amps, maybe 20amps not sure and I think its too big for the system and when the batteries was undercharged it overcharged them too fast.
anyways what I noticed is like on 3-4 of her 6 batteries right at the positive terminal it bulges up where the other ones are flats so I am thinking that's a problem right there and they need to be replaced.
being a 36volt system instead of 6 6volt batteries could you go with 3 12volt batteries instead.
if so I was thinking a battery like this:
https://www.lowes.com/pd/Mighty-Max-...tor/5000027941
Thanks everyone, I seem to learn something new everyday I came to the site.
Ryan