Bad USB causing my battery to short?
I have a 2011 MacBook Pro .. It has been working fine no problems .. until the other day .. I came out to use it and it would turn on was off . battery completely dead even though it was plugging into the charger .. I changed battery then it worked fine .. so tonight it happened again after just changing the battery .. I was changing my iPad in a usb port using a cord that i think was plugged in before when this happened . Can a bad USB cord effect the battery ..
so this last time .. I took off the back .. disconnected the battery and replugged it in .. and it work ..
so just trying to trouble shoot?