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Golf cart charging going problems
Ok, you say the charger is good, so we'll jump straight to the batteries.
First of all, although it's really tempting to spend less on batteries, try to run the 8 volt deep cycle batteries if possible, they will last a LOT longer, and run much, much further on a single charge.
Next, the batteries you bought, are they good quality deep cycle batteries, or just regular car batteries?
Assuming the batteries are good, and the charger is fine, the only other likely culprit is the on-board computer (OBC). Although I don't know for sure, I've never run 'other' batteries than those spec'd for it, I've heard that the OBC won't handle a big power load without toasting.
If your batteries weren't up to the task they would drop quickly. As voltage drops the current goes up proportionally. The OBC is also a known trouble-maker on those carts.
Best of luck.
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Golf cart charging going problems
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We stopped using the more expensive batteries around these parts because I cant count on my staff members to get them recharged on a regular basis- so what ends up happening (over and over) is the batteries get drained to nothing and the cart dies in the woods.
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I think you just solved your own problem.
As I said before, the voltage in a battery drops off, the current rises proportionately. I've heard from many different sources that this is the number one killer of the OBC.
Best of luck.
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Golf cart charging going problems
It's not a matter of right or wrong.
The reason the OEM battery is an 8 volt instead of a 12 volt is that you would be getting far more reserve amps and running amps with the six 8 volt batteries than you are presently getting from the 12 volt deep cycle marine batteries.
Look at the label or spec's on your batteries. Each of the six OEM 8 volt batteries have a 190 Ah capacity and 340 minutes at a 25 amp draw which is normal running load.
Notice I said EACH, so multiplied by 8 you would have 1,520 Ah capacity and 2720 minutes of 25 amp draw in total.
I'm willing to bet the deep cycle 12 volt batteries you are now running about the same output each, but with only 4 batteries not 8 installed you automatically have only half the capacity.
Having said that, my point was that with a much lower reserve and capacity in your batteries, the voltage begins to drop off a LOT faster than it would with the extra capacity and reserve the original batteries would have offered.
Best of luck.
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