Hello Everyone

I was wondering what people are doing to reduce cell-to-cell contact resistance in large series strings.

For example, I have 8AA->2D holder from fivemega that holds 8 PowerGenix AA cells. When fully charged, each cell has an impedance of 0.014 ohms, which should give me 0.11 ohms on the pack, but the fully charged pack has an impedance of 0.15 ohms. So I am picking up an extra 0.040 ohms of contact resistance, and losing a full 1 W of power with a 5 amp draw.

I am curious to hear and see your solutions to this problem.

Cheers!

Battery Guy

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