Thread: New Product ESR / IR Meter fo Lipos
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Old Dec 03, 2012, 01:26 PM
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Kemptville, Ontario, Canada
Joined Dec 2000
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Originally Posted by MikeAnderson View Post
I used Wayne Giles 1st gen ESR on some of my TP packs and the results were underwhelmingly discouraging. I haven't gotten around to posting the results yet and I'm working in Germany for another week but will share 1st week of Dec ( if not distracted by other things)
It convinced me not to buy any more. . . . .
Pack 1: TP 3800 ProPower 45C 6S purchased from DraganFly: Worst cell IR=4.92. Calculated C-rating =18

Pack 2: Turnigy "Blue" 3600 30C 6S purchased from HobbyKing: Worst cell IR=4.16. Calculated C-rating=20.

In fact one of the two 6S Turnigy packs had a dead cell on arrival, so I paid a LOT for the one surviving pack. But to see that the TP pack is no better is discouraging.

These are used in an EDF that pulls no more than 80A but flies most of the flight at part throttle - say 50 A. So they are both seeing less than the calculated max amps and both should last as long.

I don't seem to have good luck with selecting "good" LiPos.
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