Charging ?

[lincpimp]

It will stop, the lvc will cut the power to the motor. You will notice slight loss of power before you hit the lvc, I am used to this and stop when I notice this, usually only get another 30sec before the lvc kicks in.

80% depth of discharge (DOD) is about the best place to stop to get max life. Most airplane guys set timers to accomplish this, after a little testing, of course.

[zeropointbug]

Yes, the less you discharge your pack, the life of them increases exponentially. I usually only discharge my packs 60%DOD myself, as I don't like running for more than 15 mins at a time anyways, which is very good for the packs, they will love you back with exceptional cycle and calender life.