Originally Posted by rcbuggy88

2v per cell would totally do it. Theres a reason why basically all escs have a voltage cutoff. The battery chemistry is permanently damaged. It might not appear immediately but its definitely not the same. The lower you go the more risk. Some people say that its fine and it often is not much different than before or it puffs a lot quicker than others. Quick fixes are cycling slowly but it's not a real fix. Anything below 3.7v per cell is too low but not as bad especially if it was only for a short while, anything below 3v per cell is way too low.