​I have the generic Boxchip or Allwinner A13-MID with an internal 7.4 v Li-Ion battery that lasts less than an hour. Advertised 3-4 hours play. I have read that others have replaced the battery but lost track of where I read it. I would like the net address of a battery supplier with the right size battery that will last a reasonable amount of time. I have also read that there is a software tweak to fix the battery drain problem. Does anybody know about this? Please advise. Thanks.