| Author |
Message |
Chuck Lott (68.211.107.247)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, May 03, 2004 - 10:22 am: | |
I'm looking at batteries for my "House " system.
I shopped at Sam's Club and here's what I believe would be the best chioces from what they have available. For consideration, I have an MC8, with a additional 12V alternator for the house system. The Bus has a Solar Panel setup, ( with 4 large panels and unfortunately,I dont know the output. The setup is about 4' wide x 5' long)
I also have an 120 to 12 V converter/charger.
I need 1000 watts of 120v ac from an inverter that I have yet to purchace. The inverter will run long "light" loads (Mostly TV and chest freezer in the bay that draws 1.4 amps 120V AC)
Back to batteries-
Marine Deep cycle, maintainence free, 180 minutes reserve, 105 amp hours, 18 month exchange. Right at $50.00 each.
Golf Cart batteries, (6 volt) 110 Minute reserve,75 amp hours. conventional battery, $47 each. Prices are in Atlanta, I suppose they are similar nationwide. 12 mo exchange.
I'm considering from 4 to 6 batteries ( I mean that's what my budget is considering)
So,$300.00 would buy 6 of either battery.
the marine deep cycle setup would have 1080 mins reserve and 630 amp hours.
golf cart's would have 660 mins reserve and 450 amp hours.
But since the golf cart batteries are 6 instead of 12 volt, does that factor in the calculation?
Just from the number standpoint, the marine deep cycle would seem to be the better choice.
Whats the reccomendation from those with battery knoledge and "real world experience" Thanks Chuck |
Tom Caffrey (Pvcces) (65.74.65.65)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, May 03, 2004 - 9:41 pm: | |
While you're figuring out the best deal, you might recheck the golf cart battery ratings. I expected something above 200 amp hours on those.
In Trojan T series batteries, the main difference between T-105, T-125 and T-145 seems to be the Peukert exponent. The T-145 wastes less power with fast discharges than the lower rated units.
If you carry a big enough bank, the difference wouldn't mean much, but if your bank is pressed on big discharges, they might well be worth the difference in cost.
For what it's worth.
Tom Caffrey PD4106-2576
Suncatcher |
Chuck Lott (67.33.183.226)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 04, 2004 - 7:10 am: | |
Thanks Tom. Ill run by there and give another look at the ratings on the golf car batts. Its very possible that I made a mistake.
I figure that I'll also check on the Trojan brand at the local golf cart dealer while I'm at it.
Chuck |
califbob (209.86.8.78)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 05, 2004 - 11:58 pm: | |
Consumers Guide listed Sams and Wal-Mart battiers way down at the bottom. Trojan seem to be the best.
Having had my 04 for 21 years I'v used every battey known to man, Trojan has worked the best. I'v got 500 watts of solar and use 6, 6 volts for house and 2 gel cels 12 v for starting. I'm real happy with the set up |
CoryDane RTSII (66.155.188.12)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, May 10, 2004 - 2:44 pm: | |
"But since the golf cart batteries are 6 instead of 12 volt, does that factor in the calculation?"
Yes, the cell voltage can have a bearing.....
12vdc batt @ 105amp x 6 = 630Amp @12vdc
6vdc batt @ 75Amp = 450Amp @6vdc
6vdc batt @ 75Amp = 225Amp @ 12vdc
Go to some of the Inverter pages, they talk about batteries and how to compute what you need.
http://www.aaaffordablesolar.com/2.html
go to the bottom of the page and look at the inverter manuals. the Xantrex/Trace 4024 is a good one.
Most Conversions have at least 2 to 3000 watt inverters, if for nothing else, load growth. Be sure you are designing your system to carry enough loading for you.
You also need to look at some battery manufacturer sites, sorry, I have no addy, so you can get better info on the batteries and how they compute load use and drain and such. They are all a little different in some ways but it is valuable info.
My dime
"Imagine"
cd
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