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I tested Milwaukee M18 power tool batteries to see what low voltage cutoff and protection they have. Some of the batteries discharge below the recommended 2.5V per cell discharge limit. I think this is being done to allow the batteries to be pushed harder, but it is poorly implemented and could be damaging the batteries.
00:00 Intro
00:15 Lithium-Ion battery cutoff voltage
00:42 Literature Review
01:12 My batteries are NOT fake!
01:42 Is Milwaukee M18 cutoff in the tool or battery?
02:43 Test setup
03:11 12ah test
03:45 6ah XC test
04:08 2ah test
04:40 Low current test
04:51 Summary of cutoff voltages
05:56 Is it to increase runtime?
06:09 Are they designed to fail?
06:17 Increase power draw without triggering low voltage cutoff
07:07 Conclusions
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