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Old 05-04-2018, 03:25 PM   #1
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Battery replacement

Has anyone replaced their batteries with 6V? I'm thinking of Lifeline GPL-4CT. The current GPL-24Ts are 11.3x6.6x9.25 and the 6V's are 10.25x7.07x9.92.

I'm hoping I won't need to modify the battery box. Thanks in advance.
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Old 05-05-2018, 10:30 AM   #2
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I have not, we are pleased so far with our AGM batteries. I retired from an industry that lived on batteries, the Golf Car industry. An innovation which was introduced by one company this past winter and soon will be in the other two is at this link. The prices on this link do not reflect actual prices the golf car industry is charging for the upgrade - $1,800 per car. I find this move interesting and the companies are giving the customers a five year warranty on this type battery. I am not spending this kind of money, however.

https://www.lithiumion-batteries.com...attery-kit.php
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Old 05-06-2018, 01:42 PM   #3
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Thank you Paiceman. This seems to be a better option. Iím going to give my group 24s a few more years before I replace them.
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Old 05-06-2018, 02:10 PM   #4
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Or this.
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Old 05-06-2018, 03:19 PM   #5
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I did the Lifeline upgrade and it made a world of difference. You must upgrade the charger if you havenít already to one that allows a float charge phase to prevent cooking any replacement you put in. The batteries hold their charge well due to thicker plates and it was an easy swap.
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Old 05-07-2018, 04:19 AM   #6
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Please share the lifeline batteries and controller you upgraded to. Thanks in advance.
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Old 05-07-2018, 04:25 AM   #7
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The Lithium battery paks used in the golf car industry so far are produced by Samsung.

We upgraded our converter/charger to the Boondocker as recommended by Randy at Best Converters. It starts out at 14+ and gradually works it's way down to a trickle at 13-13.2. After just about a year it's doing a great job.
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Old 05-07-2018, 04:56 AM   #8
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Quote:
Originally Posted by GloryBound View Post
Please share the lifeline batteries and controller you upgraded to. Thanks in advance.
Converter/Panel - Upgraded to Progressive Dynamics PD-4655V with remote purchased thru Andy at www.bestconverters.com
Lifeline 6V GPL-4CT sealed Absorbed Glass Mat (AGM) batteries purchased through Lewster. It requires a short 2/0 cable with ring terminals to connect one + to one - creating a single 220ah battery at 12v.
While doing the swap I installed a bulkhead mounted Zamp connector in the side of the battery box for future use which now accommodates a Zamp portable panel set.

Fit without modification in our FC25FB 2016

I purchased the jumper cable premade when I purchased the batteries. In hindsight, however, I should have just gotten a Hydraulic crimper off Amazon as once you start doing small projects like these it seems there are more. If you do any old car work or even solar upgrades, the crimper will be used several more times negating itís cost.
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Old 05-07-2018, 11:47 AM   #9
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Doesn't that wiring pos to beg create a 24 v system
How do you get 12v?
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Old 05-07-2018, 11:52 AM   #10
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They are 6v batteries
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Old 05-07-2018, 11:58 AM   #11
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Oh got it
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Old 05-12-2018, 02:31 PM   #12
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Hi

There is no real advantage to running two 6V batteries in series vs a pair of 12V in parallel. Amp hours on the 12's add ( so two 100's get you 200 total). Amp hours on the 6's don't add ( so two 200's get you 200). All of the amp hour numbers are pretty much a guess. Unless you move up more than 15%, your new batteries may not actually be any bigger than the real capacity of your old batteries.

Why do you see a lot about 6V conversions? The Trojan T-105 is the basic answer. It is a high volume golf cart battery and can sometimes be found for less money than other flooded batteries. They perform pretty well for a flooded battery. It's a bit to big for the AS battery box so the cost of the battery + box mod is a bit much ....

Bob
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Old 05-12-2018, 02:56 PM   #13
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There's SOME difference. Lifeline claims 220AH for their group24-ish 6V AGMs, their 12V Group24 is 80 AH (claimed) so a pair of the 6v Lifeline Group24 in series at 220AH should have over 50% more usable capacity than the pair of 12v Group24s in parallel at 180AH even if you see the 220 claim as ambitious and the 80AH as conservative. (never mind speculation on whether you can repeatedly discharge the 6vs deeper than the 12vs without detriment.)
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