Do These Batteries Have Internal Resistance Issues?
Am I correct? These three batteries have internal resistance issues and should be retired?
47sem (editado 47sem)
Definitely!
With 28–55 mΩ per cell, all three packs have high internal resistance and should be retired from flight use. They’ll sag under load, run hot, and imbalance quickly - fine for bench tests, but unsafe for flying.
With 28–55 mΩ per cell, all three packs have high internal resistance and should be retired from flight use. They’ll sag under load, run hot, and imbalance quickly - fine for bench tests, but unsafe for flying.
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47sem (editado 47sem)
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Thank you so much Liquideath I was totally clueless about battery IR. There is so much to learn as a beginner. I found out the hard way and would like to share a video that might give other beginners a 'heads up' about battery maintenance. I would really appreciate it if you checked it and hopefully give it your blessings before I make it public. It is a very short video 1.12 long and is unlisted.
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47sem
Looks great! You could add a quick note on testing internal resistance - what’s considered normal (2–10 mΩ), when to retire a pack (30–50 mΩ+), and a reminder that LiPos/Li-ions should never go below 2.5 V per cell - 3.0 V is already the edge. Stay safe!
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47sem (editado 46sem)
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Thank you, yes your right the key information is missing - looks like a few re-edits are in order. This is a really new unknown territory for me but you just confirmed what I thought I understood about IR mΩ levels. (thanks)
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