Quote:
Originally Posted by mans
Wal Mart has a 125ah deep cycle battery for $81. It's 125 ah @ 1amp.
they have a 100ah@1amp for $70
And a 75ah@1amp for $60
Batteries plus has a group31 100ah @23amps for $110.
They say it goes 225 mins@23amps +a reserve of an additional 185 min before its depleted(emergencies only I guess)
Batteries plus has a group 27 for $100
It's 90ah at 23amps it goes 200 min+reserve of 175 min.
And a group 24 for $90 it's 75ah at 23amps it goes 150 min with a reserve of 140 min.
If the wal mart batteries are Only slightly inferior to the batteries plus ones i'd go in that direction(of course) but im having a difficult time comparing them cuz the Walmart ratings are at 1amp and the batteries plus ratings are at 23amps.
How severe is the "peukert"Effect ?
Is there any type of chart that I could use to help figure out the power a battery would give at 23amps from the given numbers of 1amp?
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I agree with daox that the batteries plus units sound quite superior. Frankly, the walmart battery sounds like crap. But no matter what you buy Brucepick is right. You donīt want to run these batteries down too far, below say 20%, before charging them fully or you will shorten their life and defeat the purpose of saving money on gas. That means you wil not get to use the full amp hours you are seeing on the labels. Night driving will deplete the battery faster. Get a good charger. Mine is 6amps and on the small side though the Odyssey reps tell me that is adequate if I do not discharge the battery below 20% much. Good luck!