 Battery Prices From Sam's Club, cost per amp |
| Battery Prices From Sam's Club, cost per amp |
| pianotuna |
 Aug 29 2009, 10:00 AM
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 Advanced Member  Group: Members Posts: 1029 Joined: 7-January 07 Member No.: 10403  |
Hi All,
Battery prices from Sam's Club G29 125 AH $79.42 G27 115AH $68.87 Golf Cart 6V 220AH $71.28 Based on dual batteries this equates to: G 29....@....250 amp/hr = $0.63 per amp hour G 27....@....230 amp/hr = $0.60 per amp hour Golf Cart @ 220 amp/hr = $0.65 per amp hour Before anyone does the "old saw" that six volt batteries last longer I'll point out that my last set of 12 volt batteries are six years old and still going strong. The "secret"? A 30 watt solar system with an old style charge controller. I'll also point out that the dual G 29 set has 12% more amp hour capacity than the "twin" six volt set. -------------------- Regards,
Don |
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| pianotuna |
Sep 1 2009, 12:51 AM
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#2
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Advanced Member Group: Members Posts: 1029 Joined: 7-January 07 Member No.: 10403 |
Hi Kirk,
I apologize if that remark seemed "snide" to you. If there is a "chip" I hope it is part of an MPPT charge controller *grin*. I do hope you read post #8 by me in this thread. I'd love to hear what you have studied. I'm always eager to learn more. I'd be most grateful for anyone to present definitive studies that prove that if the amp hours are equal that a six volt battery bank will out perform a twelve volt battery bank. My maintenance on the twelve volt batteries in my previous RV, which have their seventh birthday in Sept 2009, was keeping them charged through 30 watts of solar power with an old style charge controller, watering them once per year and cleaning them once per year. My costs per amp/hour and the lifespan of the batteries have been exceptional. It is not, however, "proof" that 12 volt units are "better". One possible reason to lean towards 12 volts vs 6 volts is if there is storage space for only an odd number of batteries. In my new RV that would be 7 12 volt units. I could have done one bank of 4 six volt and one bank of 3 twelve volt--but I felt it was easier to just have all batteries the same. If you wish to see a forum where I have posted information about the system with some measurements please surf here: http://freecampsites.net/forum/technology/page-1/ And click on "Solar Boondocking". -------------------- Regards,
Don |
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pianotuna Battery Prices From Sam's Club Aug 29 2009, 10:00 AM
Denali Don:
With your boondocking style and solar system... Aug 29 2009, 10:17 AM
pianotuna Hi Dave,
Well, if you want to buy me some Golf Ca... Aug 29 2009, 11:45 AM abbygolden A battery wizard I ain't! However, regard... Aug 29 2009, 12:07 PM pianotuna Hi Abbygolden,
My former RV has two walmart 12 vo... Aug 30 2009, 10:59 AM John Blue We also use the Trojan T-105 battery (six) in our ... Aug 30 2009, 08:20 AM Lee and Fran Back some thirteen years ago I had a 74 winnebago ... Aug 31 2009, 10:58 AM pianotuna Hi all,
I won't get into the six volt vs twel... Aug 31 2009, 03:29 PM Kirk Other than a desire to start some kind of fight,... Aug 31 2009, 09:16 PM pianotuna posted in error Sep 9 2009, 11:46 AM |
