That's way too low of a discharge for a pack to have any reasonable longevity, even for the higher voltage cell. Apparently it was fully discharged.

The typical 3V/cell minimum, preferably 3.2-3.4V per recommendation, is for the lipo under load while running. Under load the voltage will drop/sag, especially towards the end of charge. But it should rise back up when rested for a bit. Preferably above 3.7V/cell at least for good life.


A typical resting voltage vs capacity table, based on discharging at 1C to 3V. Of course this will vary some by cell type but most tests I have seen over the years are fairly close.

4.20v = 100%
4.03v = 76%
3.86v = 52%
3.83v = 42%
3.79v = 30%
3.70v = 11%
3.6?v = 0%


Suggest checking your LVC for proper operation. In any event stop as soon as the power drops off and don't try to coax a little more out of it. Be sure to unplug the pack too.