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11.19.2007, 06:01 PM
No, it's fine, sorta. I use 1.4v/cell for NiMHs since that is what they generally peak to, but the math itself looks good.
8.4v x 3.8A x 120% / 12v = 3.2Ah.
Let's say you were charging 6s lipos at 10A, you'd need:
25.2v x 10A x 120% / 12v = 25.2Ah
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