I know this question has been asked before but it is very hard to get a straight answer. there are many heated debates going on about this issue. From what i have gathered i should discarge the battery down to 0% once a month and then recharge it to 100% this is to recalibrate the meter. Can i get an A or B answer. (A) recharge it after it is flat. (B) top it up. If b at what point should i top it up or does it not realy matter.