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Unread 05-26-2010, 12:38 PM   #1
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Default 8 volt vs. 12 volt

I have a 2005 Humdinger that is on a club car frame. It uses a 48 Volt system. Can I use 4-12 volts vs. 6-8 volts? I've purchased 2 sets of batteries in 5 years. And this year $150. A battery us way too much.
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Unread 05-26-2010, 12:50 PM   #2
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Default Re: 8 volt vs. 12 volt

If you can anchor them in there they will work... My cc is 48 volt 4 - 12 volt batteries. I have heard here on the forum you get more run time with 6 - 8volt batteries. Your choice..


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Unread 05-26-2010, 01:19 PM   #3
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Default Re: 8 volt vs. 12 volt

To answer your question in a 24-36-48 volt pack 6 volt or 8 volt batterys will last longer than 12 volt batterys used as replacements and give you more mileage. Without knowing what brand and more so quality ( Amp Hour Rating and weight ) of previous batterys it sounds as if you are very hard on batterys? My 8 volt Trojan T875's are now 6 years old and still showing very good readings yet? I do check them for distilled water twice monthly for correct level and clean battery case with soda and brush at same time. I also charge them after each usage to keep them in peak condition rather than waiting until they are down to 50%.
When I mentioned weight that was a comment about the quality of batterys in that lead is weight and the more weight the more power and life available. Just pick up a cheap cart battery and then a quality battery like a Trojan and you can feel the difference right away.
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Unread 05-26-2010, 01:22 PM   #4
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Default Re: 8 volt vs. 12 volt

$150 apiece for 8v Trojans seems like a lot but then again 12v Trojans will cost you over $200 each, this puts them both in the same category cost wise.
There is definitely more run time to 6x8v batteries than there is with 4x12v.
If you want a less expensive alternative, Sam's Club sells 8v Energizers for about $78 apiece which is 1/2 the price.
They are the same weight as the Trojans and have similar AH ratings.
Other members on this forum have been using them with good results.
Battery life usually boils down to the care and attention you supply more so than the batteries themselves.
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Unread 05-26-2010, 05:07 PM   #5
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Default Re: 8 volt vs. 12 volt

Quote:
Originally Posted by Bert18 View Post
Can I use 4-12 volts vs. 6-8 volts?
Certainly but there is a trade off. I assume you are talking about using something like a Trojan 12 volt T-1260, vs a Trojan T-875?. What you will give up in a 12 volt is capacity or run time. T-1260 has a Amp Hour capacity of 140, vs 170 AH of a T-875. In plain talk the 12 volt battery has 18% less capacity than the 8 volt.
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Unread 05-26-2010, 06:39 PM   #6
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Default Re: 8 volt vs. 12 volt

These guys are right. However, it all depends on what you use your car for. If you're just using it to run back and forth to the mailbox or something simple such as this, you'll be fine with 12s... They just don't have the run-time that 6 8 volts do. They have 10oz less liquid cell capacity/per cell than the 8 volts do. Any spillage or boilover is crucial in the 12 volt setup. This is usually what makes them go bad so quickly. People overfill them and lose most of their electrolytes on their garage floor while they charge. They end up trying to charge a battery full of water. My point is, if you don't overfill your batteries you'll have decent life from either option. However, the run time still will never be as good with the 12s as it is with the 8s. I've been working on these for 9 years at a Club Car dealer and I've never seen a set of 12s run over 90 minutes on a discharge machine. A new set of 8 volts will run somewhere around 120 minutes.
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Unread 05-28-2010, 01:10 AM   #7
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Default Re: 8 volt vs. 12 volt

Thank you everyone. I think for now I'm going to try the batteries at Sam's. I called today and they are $72.00 vs. $132.00 for batteries from Interstate batteries.
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Unread 05-28-2010, 05:45 PM   #8
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Default Re: 8 volt vs. 12 volt

For 1/2 the price you can't go wrong.
Don't forget, new batteries need to be charged before you use them and they will take about 25 charge cycles before they come up to their potential.
Charge the cart every time you have 15 minutes or more of peddle time.
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Unread 06-09-2010, 08:46 PM   #9
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Default Re: 8 volt vs. 12 volt

So charge it after I use it for 15 min. or more? And it takes 25 charges before they are at 100%?
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Unread 06-09-2010, 08:57 PM   #10
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Default Re: 8 volt vs. 12 volt

Quote:
Originally Posted by Bert18 View Post
So charge it after I use it for 15 min. or more? And it takes 25 charges before they are at 100%?
Yes, and the charging advice is forever, not just while your breaking the batteries in.
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