diy solar

diy solar

Powering a 12v Trolling Motor

The larger 280Ah cells have internal resistances below 0.2mΩ.

The picture in that product with the same tester shows 1.28mΩ

The voltage drop due to IR of those 32Ah cells will be pretty typical of a lead-acid battery with those kinds of IR numbers. I would be very dubious of any 3-5C claims.

Thanks for spotting that.
I don't particularly want to limit myself to a small cell that must discharge at such a high rate, but the cells that are available in the 50-100Ah region seem very close in price to the 200Ah+ cells and just seem like very poor value.
Unless, of course, my ideas about the price of 200/280Ah cells is skewed by too-good-to-be-true deals?
 
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