ORIGINAL: getterflash

My new Turnigy 10XC charger measures individual cell impedance during the charge process. On all but one of my 5S 5000mAH packs this impedance number is in the range of 2.7 to 3.1 milliohms for each cell. I assume as cells are cycled and age this number will go up.

For those of you that have am method to measure cell impedance, what are the typical values for a reasonably fresh 5000mAH pack? Have you seen this number go up as the packs are used?

The reason I ask is I have one pack with cell#1 reporting 8.7milliohms, not a huge number but 3 times the value reported by the other cells in the same pack. This tells me either the cell is bad, or it is a wildly different "C" rating than the other cells. This same pack is the subject of another post about one pack out of 3 being "skinnier" by 1/8".