I got a bargain basement Chinese fablet a while back and the battery has given me nothing but trouble since I got it. Way too many issues to even list here, and I can't take it back now, so I'll cut to the chase. No matter how long I leave it charging or how many different chargers and cables I try, it won't charge to 100% anymore, so I've just started using it plugged in to the PC and charging all the time. Battery has been utter crap since day one, but I still want it to last me as long as possible, therefore, my one question is even though it won't charge to 100% any more should I still unplug it let it run down before charging again or just leave it permanently charging on the PC when I use it and not even bother with the percentages anymore? Thanks in advance, Vin.