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Old 04-20-2010, 06:55 PM   #29
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"Saturday I bought two Golf Cart batteries from Costco for only $75 each. I'll give them a try but friends say they are just as good (and heavy) as the Trojan T105s."

How did that work out for you? I am a rookie with AS and I bought my first 20 days ago, 2007 25' Classic-limited. I will soon be upgrading the batteries, so I am trying to determine the best way to go.
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Old 04-20-2010, 07:46 PM   #30
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"Saturday I bought two Golf Cart batteries from Costco for only $75 each. I'll give them a try but friends say they are just as good (and heavy) as the Trojan T105s."

How did that work out for you? I am a rookie with AS and I bought my first 20 days ago, 2007 25' Classic-limited. I will soon be upgrading the batteries, so I am trying to determine the best way to go.
A good and timely question. For several years I've used 6v golf cart batteries and loved them and never had any problem with them at all (see my earlier post in this thread). That was until last weekend. Saturday evening the (-) negative battery post separated from the battery while charging and it killed all the 12v power to my Sovereign. Boy that really sucked!!!!

So the moral of the story is if you only have room for two batteries go with 2 12v Size 27 batteries. If you have room for four go with 4 6v batteries (the likelyhood of two batteries failing is astronomically small). I returned both 6v batteries to Costco and got two 12v Size 27 batteries instead.
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Old 04-21-2010, 12:17 AM   #31
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Thanks for responding so quickly, Mike. The batteries are 3 years old and don't seem to hold a charge very long , so rather than have a bad camping trip, I'll replace them now. I don't really have room for 4, so I will likely stay with the 2 12v.

I have a Honda 2000i and I intend to get a second, so I think I'll be covered.

Thanks again,

Dan
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Old 04-21-2010, 11:07 AM   #32
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Deep Cycle Batteries

Hi,
For what it's worth: I have just purchased (5) 115 AH, 600 CCA, 750MCA deep cycle batteries from Concord, CA Costco. They cost $67.50 each plus $9 core charge.
I shall use one as a SLI battery and 4 as house batteries. I am removing the Airstream supplied battery combiner (it's nearly as old as me) and replacing it with a Blue Seas 'Add-a-battery' setup. The five batteries will all be connected together during charging: shore power battery charger, alternator, generator charger.
Whilst connected to shore power I shall use all five as house batteries. If shore power is disconnected I shall switch to isolate the SLI battery from house discharge (but not charging)
Next financial stage is to install four solar panels (AM100-m's) and a Blue Sky MPPT solar panel controller and battery monitor control unit.

When purchasing batteries insist on getting the current months production units.
I was told my Costco restocks on Thursday that's when I went there.
Batteries self discharge when filled (wet) so sitting on a store shelf depletes the useful life, they are not usually charged in any way by the stores.
I used these same batteries on my houseboat and had no problems with them.
As battery making is a nasty business and the EPA is active (for once) there are only 4 or 5 manufactures in the US so labeling doesn't mean too much. Costco's brand is Kirkland. They have a vested interest in not selling crap soooo!

Hope this is of some interest

David
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Old 04-21-2010, 11:43 AM   #33
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When I got my Honda 2000i, there was a warning in the instruction book about using it to charge deep cell batteries. Something about charging too quickly and possibly over-charging and damaging the batteries. I contacted Lifeline (the maker of my batteries) and they told me that their batteries would accept the quicker charge without a problem. Has anyone else seen the warning in the Honda 2000i booklet? jc
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Old 04-21-2010, 02:29 PM   #34
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Originally Posted by Gator113244 View Post
Thanks for responding so quickly, Mike. The batteries are 3 years old and don't seem to hold a charge very long , so rather than have a bad camping trip, I'll replace them now. I don't really have room for 4, so I will likely stay with the 2 12v.

I have a Honda 2000i and I intend to get a second, so I think I'll be covered.

Thanks again,

Dan
Dan,
One Honda 2000 is more than enough to charge your batteries. Unless you intend to use the pair to run your air conditioner.
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Old 04-21-2010, 04:35 PM   #35
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Cool 2 12V vs 2 6V Batteries

Good thoughts in this thread guys. Just remember, anytime you are buying a battery it is like buying a Banana. Life is limited at best.
when a post separates off, something besides age causes that. Stress on the cable, excessive vibration or tension, could be a number of things. I have found waay too many side -post batteries ruined by over-tightening the cable bolts. 7 lbsFt torque is plenty. On top-post units proper cleaning and tightening of cables is important too. Most of all, CHECK the electrolyte level once monthly. If needed, add distilled or RO water only! A healthy battery uses 1oz of water per cell per month. At least that is what Electric Storage Battery Co says. Keep the top of the battery clean and dry to minimize leakage of the charge. Treat it like a Banana. Care for it, and clean and protect it. Makes 'em last. My last 4 6V house batteries were 7 years old and still going strong when I sold the unit.
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Old 04-21-2010, 05:27 PM   #36
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When a post separates off, something besides age causes that. Stress on the cable, excessive vibration or tension, could be a number of things. I have found waay too many side -post batteries ruined by over-tightening the cable bolts. 7 lbsFt torque is plenty. On top-post units proper cleaning and tightening of cables is important too... My last 4 6V house batteries were 7 years old and still going strong when I sold the unit.
Mike
Good points, Mike. I'm sure that stress and tension were the culprits in my recent 6v battery failure. I recently installed a Xantrex Freedom 10 Inverter-Charger and I opted to install the big 2/0 cables. I'm sure there was a lot of tension from these cables that caused the failure. I really loved using the 6v batteries, but this recent failure made it clear that if you only have room for two batteries, go with the 12v Size 27s (If I had room for four I'd go with 6v batteries any day). Having no 12v power (no lights, water, and refrigerator) really sucked the last day of our trip.
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Old 04-22-2010, 12:09 AM   #37
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Cool 2 12V vs 2 6V Batteries

Roger that Mike. When the frige goes out, it's all over with me. Don't blame you for the change either. I'm trying to engineer a way to successfully fit in 4 6V batteries on my Silver Hornet. Looks like a major overhaul of the battery tray along with a real-world converter/charger for my rig.
Mike
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Old 04-23-2010, 12:50 AM   #38
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Dan,
One Honda 2000 is more than enough to charge your batteries. Unless you intend to use the pair to run your air conditioner.
Yes Mike. Locally, I should seldom need an air conditioner, but should we dry camp someplace hot, I require it in order to breath without difficulty. I don't like spending the money on another one, but for me, it's better safe than sorry.

I also have an oxygen concentrator and a C-PAP that I require for sleeping, so I need dependable power. It's a pain, but I've learned to just work around the issues as they come up. ;>)

Now if I could just get my hands on a portable nuclear reactor....
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