windows tablet pc laptop battery tablet pc mobile computing notebook battery pen tablet WINDOWS TABLET PC Advantages of the Scribbler Windows Tablet PC 1. Four times longer battery life than any other Windows Tablet PC. 2. The only Tablet PC on the market that can provide 8-16 hours of run-time providing an entire days worth of mobility. 3. The only Tablet PC that makes Microsoft’s Windows XP Tablet PC version truly an operating system for mobile devices.. 4. Highest battery Charge-time/Yield ratio 5. User replaceable battery 6. Professional 24/7 customer support. What operating system does a Tablet PC use? The Tablet PCs use Windows XP Professional Tablet PC version. They also have additional software installed for handwriting recognition and ink notes.  It is anticipated that existing applications that are compatible with Windows XP will run on the tablet PC.