Join Date: Sep 2008
Location: Victoria B.C. Canada
Thanked 113 Times in 104 Posts
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Re: favourite marine battery
The 6volt batteries sold at costco and BJ's are identical the trojan t-105's I just replaced. they were $80 each at costco.
more importantly, you need a good charger.
Iota engineering make good smart chargers, I think the 4 stage, (4 being an equalization once a month) 55amp was under $250 and its a beast.
Iota does make good chargers but it is not a true equalization, more like a slight boost. The voltage doesn't rise to the 15.5 - 16 that equalization requires. Besides you wouldn't want to equalize the batteries monthly.
Living aboard in Victoria Harbour