Re:Livenerf: Has Opus 5.5 been nerfed yet?
by dragontamer on Thursday October 01, 2026 @05:55PM
(#49927524)
Oh yeah. I stop at 0.95V. which I consider fully discharged (but not so low that I'm damaging the cells). I'm about 10% off the manufacturers claimed specs but I'd rather not push the limits of testing. That's low enough to differentiate between good and bad cells
The discharge rate is currently regulated by only a 2.2 Ohm resistor. The next version of this circuit will be a constant current drain circuit to make all tests draw the same mA across the whole test.
Right now more current is drawn at 1.35V start and far less current is drawn at 0.95V end of test.
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The part that they don't tell you is that 0.95V isn't one point. When you disconnect the cell, it charges back up (kinda like a capacitor). This process can take multiple minutes (!!!!). I've defined the end as being lower than 0.95V for more than 30 seconds, even if disconnected.
Im sure you know this, but do note that fully dumping the charge can a) damage the battery and dramatically shorten its lifespan, b) give you different results depending on your discharge rate and the batteries you are testing, as they all have different current-dependent discharge curves.