Can I test run a 36V cart with 30V?

JohnBG

Not sure if my prayers to St. Jude Thaddeus, the patron saint of lost causes is working or not. I've been working on the 7-year old Trojan T-105's that came with my cart. The first two I've got almost up to 12V after a day of charging...

Of the 4 other batteries, 3 of them have about 3 volts each (haven't started charging them yet) and one of them is completely dead, no volts, muerto...

I would like to see if the cart works before forking out $500-600 for new batteries. If I manage to get 30V between the 5 good batteries, could I hook those up and see if the cart works?

It would be nice to see it move under it's own power, even for just a few feet...

BGW

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scottyb

On jack stands only ~ their voltage will drop instantly. Try F and then R if the wheels move in both directions = end of test.

Don't risk damaging other components with low voltage.

JohnBG

Cool thanks, I might give that a try if I can get the other batteries working.

I really want to see this rig work...

dougmcp

I think all of your batteries are toast and won't take a load.
Just find 3x12v batteries of any type in good condition to test the cart.
After you confirm it's working, either buy new batteries or some $150 used ones from a golf cart dealer in your area.

JohnBG

It works!!!!!

I got about 5 to 6 volts on all the batteries and I put it up on a jack and turned the key and the wheels turned!!!!

I dropped the jack and it went about 50' on it's own power before the batteries croaked!

But hey, it works!!!!!!

I'm off to get some batteries tomorrow...

dougmcp

Congrats on the fix!