Just received my unit, noticed as the scanner runs on battery, the right side of the scanner (facing front) where the USB slots are, gets warm, not hot, just warm. Also, all I get is about 5 hours on a fully charged battery, with the green lite on showing fully charged, display shows 4.2V, and my display is set for minimum time on (i have the same issues w/ the display as other thread mentioned), and about 50% talk/silent time. Battery shows low at 3.4V. Any suggestions?