Battery charge up time?

2 1/2 hours on this side for standard battery.

About 4 hours for the extended one 2750.
 
Depends a lot on the battery capacity and the charger output capability. The available stock batteries are 1400ma and 2750ma capcity. The USB spec limits current to 500ma therefore a lot of chargers are only capable of 500ma output. The HTC stock charger included with the TB has a 1000ma output capability.

So do the math...if you have the 2750ma battery and the 1000ma charger the best you could hope for with 100% efficiency is 2.75hours. Since nothing is 100% efficient you are looking at 3 to 4 hours for this example....or double that if your using a 500ma charger.
 
Changed to Theoryrom's senserom yesterday and it took almost 2 hrs for a full charge. Also, battery life has been better than on CM7. Ending my day on almost 50%'s pretty ridiculous!

Also, I have a different charger than stock...u150? Yeah, here it is: Amazon.com: Travel Charger U150, Black, for HTC Thunderbolt: Cell Phones & Accessories

Cord's MUCH longer, bendy, and doesn't stick out like that ridiculous u250 that came in the box.