Using a eGo 1000mah for a about month and half way through a puff it stopped working. charged it, the light illuminates when pressed, but nothing. Cleaned the contact, tried another overnight charge, charger showed it was charging, still nothing. Any tricks, or is it just shot? Is this a common problem too (before I order another). I'm making due with a 510 batt and a 510 passthrough, but even my 510 batt seems to be working 60%ish? I do try to run a battery all the way down before charging, though my eGo I would plug in every night as it would usually last all day, but die right away then next morning