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Old 11-24-2007, 02:42 PM   #15
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Nice article on Battery Basics in the December 2007 issue of God Sam's HIGHWAYS. It repeats what lewster said in his posting. And it recommends 6v batteries for those who boondock a lot...........
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Old 11-27-2007, 07:48 PM   #16
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Lewster is one the money again. the 6 volt golf cart batterys are much to be preferred over any 12 volt type. the 6 volt batterys are availible in several heights. The short ones have about 105 amps, the tallest, about 375 amps for a premium brand. All have the same footprint. stay away from Interstate and Exide brands, they are not known for long life. The best for the buck is Trojan, the best of the best, for lots of bucks is Rolls.
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Old 11-27-2007, 08:03 PM   #17
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there are about 50 threads on this topic with the same posts repeated in each...

Quote:
Originally Posted by rangebowdrie
... the 6 volt golf cart batterys are much to be preferred over any 12 volt type...
this might be true for a 4 battery arrangement and even more so for a 6 battery setup...

sometimes, like when rebuilding the system, setup and locations, when SPACE AND WEIGHT aren't an issue (boats and mohos)

but not when just 2 batteries are used, and the location is limited...like in a silver trialer i disagree.

there isn't any advantage to a pair of 6 volts over a pair of 12v agms. of similar capacity.

at least no one has made the case for 2 based on simple facts and not sales/up grade, 'i know the real world better than you', hype.

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Old 11-27-2007, 09:08 PM   #18
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There are other factors to consider when comparing batteries. I have seen cut-a-ways of the Lifeline products and the difference between the construction of their 12VDC line and their golf cart batteries was telling, with the golf cart series utilizing much heavier lead plates and overall construction.....even better that the venerable '8-D' behemoths.

And speaking of 8'Ds......if you look at the capacities chart on the Lifeline web site: Lifeline Batteries - Marine & RV Deep Cycle Batteries and look at not only the amp/hour rating, but the 25amp 'minutes of discharge' rate which is particularly useful, you will see a telling difference.

If you compare the 8-D for example, it has a 255 amp/hour rating and 475 minutes of discharge at the 25 amp rate. Now look at the GPL-4CT golf cart battery. It has a 220 amp/hour rating but 492 minutes of discharge at the 25 amp rating...........interesting....more useable discharge time than an 8-D!

Now look at the new GPL-6CT golf cart battery. It has a 300 amp/hour rating but a whopping 690 minutes of discharge at 25 amps.

These are comparing apples to apples by looking at one manufacturers product so there is no brand bias. For me , the choice is clear!
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Old 11-28-2007, 06:43 PM   #19
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One of the nicer advantages of the 6-volt types, is there ability to have high capacity in a small footprint. If you have the height available, two of the 6-volts will fit in a smaller area than two 12-volts, and give you greater capacity. The more robust plate construction, longer life, and greater number of charge/discharge cycles are icing on the cake.
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Old 11-28-2007, 07:04 PM   #20
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I always get a kick out of the 2 x 6v vs 12v discussion. In reality it's a case of how many 2v lead acid cells there are in each plastic case. A 6 volt is three per plastic holder and a 12v is 6 cells. I always liked the more robust size per cell of the 6 volt setup. We used to make 6 volt batteries from a 12 volt that had 1 bad cell. Drive a nail through 3 cells including the one bad on and you have a 6 volt battery
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Old 11-28-2007, 07:29 PM   #21
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This is great, finally I learned how to make my own 6-volt batts.
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