yup.. draining a li-ion battery down to zero..is as good as having the chances of the battery exploding when charging increase by ten fold....
guys better understand how li-ion battery works before fooling around with them..li-ion fires are difficult to put out.. mind you..
how many actually encountered faulty batteries??...i got a couple of "OEM" ones and it seems to last only 6 months...then all start fail to hold charge;( ;(