What's resistance in a lipo batt?

[simplechamp]

That reminds me my new iCharger 106B+ can measure internal cell resistance. It will be interesting to see what kind of measurements I get with my balanced packs, and also the new pack I just got that has a suspected bad cell (only charges up to 4.09V).

Maybe I'll make a spreadsheet and record the internal resistances of the cells over the lifespan of the packs, might get some useful data there.