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Old 08-08-2020, 01:09 PM   #1
JY07
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Join Date: Apr 2020
Posts: 8
Default G2E Lithium Battery Replacement

I thought I'd share my experience getting new batteries for my 1985 G2E, since it was a bigger PITA than I had expected: how hard can it be to find some lithium batteries for a golf cart, right?

The existing Trojan T-105's in the cart were starting to die out this year, so I figured I'd be able to hop online and get some form of lithium ion batteries, since it looked like replacement Trojan's would be $900+, and surely by now there was a better option than batteries you need to constantly have plugged in and topped off with distilled water.

Total PITA: after researching the best drop-in option I could find were the Dakota Lithium 54AH batteries w/ chargers for about $1200 (we only use the cart for driving around the area so it didn't need to be a high capacity), so I went ahead and ordered. After waiting about a month for something that was supposed to ship out immediately, I ended up cancelling the order. I figured if it was taking that long, they're just the middleman for a factory in China, so why not just go straight to the source, right?

I contacted a few companies on alibaba and settled on one that agreed to just make a single 36v 100AH lifepo4 battery (opposed to three 12v) for a little under $700: with the charger, shipped, it came out to be a hair under $1000.

The battery came in this week; I wasn't super confident everything was actually going to work (especially on a 30+ year old golf cart), but I plugged it in and off we went:

image.png

The only issues so far is I'm not 100% sure how to read the battery meter: it always says its fully charged, but to be fair we really haven't used it much yet.

The other thing is if you're just trying to move the cart a few feet forward, barely touching the pedal results in the motor clicking on and off more than it used to; not sure if there's a good way to adjust that.

If anyone has any questions, let me know; hopefully this will help someone else in the same boat take the leap on non-lead batteries with a little bit more confidence
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Old 08-10-2020, 10:06 AM   #2
Hooptmac
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Yamaha
 
Join Date: Jun 2017
Location: South Louisiana
Posts: 55
Default Re: G2E Lithium Battery Replacement


When ordering the battery direct, did you specify battery dimensions? It looks like you used the same battery trays.

Thanks.
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Old 08-13-2020, 10:56 AM   #3
JY07
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Join Date: Apr 2020
Posts: 8
Default Re: G2E Lithium Battery Replacement

The company had fixed dimensions for the various voltages, although the 36v version did have two options (a square-ish version that I went with vs. a more rectangular one)

On the side the battery sits, I took out the trays and cut down some treated plywood to fill the space. I just put a bunch of rubber grippy pads on it to hold it into place; hasn't moved at all yet
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