Was finally able to test the internal resistance of my LIPO's Having had a problem with one of my lipo's, I decided to get a tester to see what the IR of each cell is. Here's what I've got:
Are there any that look concerning? One of these batteries gets warm/hot when charging (and one of the cells always lags behind), and one came with a used truck (haven't even used it yet). All of these are at storage voltage. |
Re: Was finally able to test the internal resistance of my LIPO's #5, 142 milliohms (IR is always measured in milliohms) is way too high. I'd retire that battery immediately. The rest are in pretty good condition. Anything less than 10 milliohms is in excellent used condition. Personally, I won't use a lipo if any cell is over 20 milliohms. |
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But the 3 cell is having issues - heating and cell one always takes hours to catch up to the other two cells. Venom said it should go because of the heat and I'm in agreement. Even with a batsafe I don't trust this battery. |
Re: Was finally able to test the internal resistance of my LIPO's I wonder does the size or capacity play a role in this? All of my small batteries (850 mah and less) have terribly high IR even a pair of brand new ones, they're up in the 80's to 100's. |
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Awesome, thank you "thumbsup" |
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