2007 G29 Voltage Drop Problem

Drive2007FL · 11-24-2015, 06:58 PM

Hi all!

Relatively new golf carter and I have a question. Have a 2007 G29 lifted. Recently, I've noticed a change in the voltage. The batteries don't seem to be holding a charge and there's a particularly sharp voltage drop. While driving around tonight (did about 9 or so miles), the cart dropped from 52V (fully charged) to 42V under load. This was with the led headlights running. It seems to drop quickly from 46V to 42V (the last three miles). I let the cart sit and rest for about an hour and the voltage (not under load) jumped back up to 49.8V from 48.2V (when I had stopped originally after getting home).

Is it time for some new batteries or might this be another problem?

Thanks for any help you can give. The cart has Trojan T-1275 batteries. The voltage for each, after the run, was 12.36, 12.36, 12.34, and 12.12.

Thanks again!
Bill

cgtech · 11-25-2015, 02:08 AM

Factory lights with dc/dc convertor. or aftermarket lights tapped on one battery?

Drive2007FL · 11-25-2015, 02:09 PM

Aftermarket. They've been on for awhile; it does it even with the lights off.

The voltage just dips quickly, but recovers once the load is removed.

Drive2007FL · 11-25-2015, 02:09 PM

They're also LED, BTW. The same ones you typically see on Drives....

smallblock450sl · 11-25-2015, 04:36 PM

How old are the batteries? Do the same test on each individual battery under load and report back.

Yamahaman · 11-25-2015, 04:57 PM

Depending on the age of the batteries they could be getting old and showing age.Lifted and probably has larger tires will also put more strain on batteries.You can charge them and have them load tested to give you a better idea on there condition.Have you considered replacing those 12v with 8V batteries when it's time ?.My next cart will have them instead of 12V but that's just me.

* 6-8V's should give a lot better range than 4-12V at least that's what I keep reading on here. *

11-24-2015, 06:58 PM	#1
Drive2007FL Not Yet Wild Join Date: Mar 2014 Posts: 6	2007 G29 Voltage Drop Problem Hi all! Relatively new golf carter and I have a question. Have a 2007 G29 lifted. Recently, I've noticed a change in the voltage. The batteries don't seem to be holding a charge and there's a particularly sharp voltage drop. While driving around tonight (did about 9 or so miles), the cart dropped from 52V (fully charged) to 42V under load. This was with the led headlights running. It seems to drop quickly from 46V to 42V (the last three miles). I let the cart sit and rest for about an hour and the voltage (not under load) jumped back up to 49.8V from 48.2V (when I had stopped originally after getting home). Is it time for some new batteries or might this be another problem? Thanks for any help you can give. The cart has Trojan T-1275 batteries. The voltage for each, after the run, was 12.36, 12.36, 12.34, and 12.12. Thanks again! Bill
Drive2007FL Not Yet Wild Join Date: Mar 2014 Posts: 6

11-25-2015, 02:08 AM	#2
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 2007 G29 Voltage Drop Problem Factory lights with dc/dc convertor. or aftermarket lights tapped on one battery?

11-25-2015, 02:09 PM	#3
Drive2007FL Not Yet Wild Join Date: Mar 2014 Posts: 6	Re: 2007 G29 Voltage Drop Problem Aftermarket. They've been on for awhile; it does it even with the lights off. The voltage just dips quickly, but recovers once the load is removed.
Drive2007FL Not Yet Wild Join Date: Mar 2014 Posts: 6

11-25-2015, 02:09 PM	#4
Drive2007FL Not Yet Wild Join Date: Mar 2014 Posts: 6	Re: 2007 G29 Voltage Drop Problem They're also LED, BTW. The same ones you typically see on Drives....
Drive2007FL Not Yet Wild Join Date: Mar 2014 Posts: 6

11-25-2015, 04:36 PM	#5
smallblock450sl Sometime's............ Join Date: Oct 2007 Location: Tacoma Washington Posts: 11,874	Re: 2007 G29 Voltage Drop Problem How old are the batteries? Do the same test on each individual battery under load and report back.

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11-25-2015, 04:57 PM	#6
Yamahaman Gone Wild Join Date: Jul 2015 Location: Texas Posts: 223	Re: 2007 G29 Voltage Drop Problem Depending on the age of the batteries they could be getting old and showing age.Lifted and probably has larger tires will also put more strain on batteries.You can charge them and have them load tested to give you a better idea on there condition.Have you considered replacing those 12v with 8V batteries when it's time ?.My next cart will have them instead of 12V but that's just me. * 6-8V's should give a lot better range than 4-12V at least that's what I keep reading on here. * Last edited by Yamahaman; 11-25-2015 at 05:13 PM.. Reason: add text

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