internal resistance levels.

[turko]

I'm going through my batteries with my new charger ( hyperion eos 0720inet3) and the internal resistance was cell1 8 and cell 2 was 28.8 ma) Is this high or what int resis. should I be looking for, what is considered normal?

[JWeber]

Depends on the capacity of the battery. Even without knowing that, they are not matched all that well. Generally you want the resistance of all of the cells to be close. That's a 3.5X difference.

[Smoggie]

^+1

It depends very much on the battery size, small battery shave higher resistance, large have lower. It also depends on what you use to measure, some chargers (Powerlab for instance) produce much lower IR numbers than other chargers.

But the cells should be similar. The large difference in yours is something that might indicate a problem, but even then i'd not jump to conclusions. Some chargers do tend to often produce higher readings for one cell than for the others (e.g. Powerlab again)

[turko]

The lipo in question has internal resist,cell1 50.8 and cell 2 80.3.This battery is almost new has maybe 15 flights.POS.

[Smoggie]

Originally Posted by turko

The lipo in question has internal resist,cell1 50.8 and cell 2 80.3.This battery is almost new has maybe 15 flights.POS.

As said already, the numbers mean absolutely nothing if you dont say what size (mAH) the battery is.
If that's a micro size battery (200mAh or so) then there is nothing wrong, if it's a much larger battery then it's toast.

[turko]

It is a 2 cell 200 ma 30c battery.

[Slyster]

Holy smokes 200mah? You could run triple digit IR's and be just fine.. plus they are $5.00. Bit difference between that an $300 stick packs. If you aren't happy toss them and get some more.