03-23-2007, 03:23 AM
I've been buying the big COSTCO RV Deep Cycle battery that they have for my electric motors for years.
It's 750 CCA and 105AH. I think that if you take your amp draw and divide it into the AH you have your run time. They get $63 for it and a $5 disposal charge (?, Probably a state thing). You could buy 3 for the cost of an Optima.
I get about 4 years out of them. I have an auto charger, and I keep them charged.
I have just upgraded to a 24 volt, 63 lb thrust that I got a deal on from the forum want ads. It's used but it is double the volts and 33% more thrust. I purchused the second 12 V Costco battery today.
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It's 750 CCA and 105AH. I think that if you take your amp draw and divide it into the AH you have your run time. They get $63 for it and a $5 disposal charge (?, Probably a state thing). You could buy 3 for the cost of an Optima.
I get about 4 years out of them. I have an auto charger, and I keep them charged.
I have just upgraded to a 24 volt, 63 lb thrust that I got a deal on from the forum want ads. It's used but it is double the volts and 33% more thrust. I purchused the second 12 V Costco battery today.
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