I was wondering if leaving a USB memory in should double the battery drain during standby? I verified that the battery drain goes from 1-1.5% every hour without USB memory to 2.5-3% with USB memory. I have a SanDisk Cruzer 64GB USB and a DVP11 5130. Is there any way to completely stop USB power when the tablet is in standby? I prefer to leave the USB memory in most of the time if I can, but this drain rate is too much. Thanks, - Woody