Palm Pre - Manual (Page 38)

38 Section 2A: Basics
2. Connect the small end of the USB cable to the charger/microUSB connector.
3. Connect the other end of the USB cable to the AC charger.
4. Plug the AC charger into a working outlet.
When the battery is very low, the battery icon in the upper-right corner of the screen
changes to red. When the battery is fully charged, the icon appears full and changes to
green
.
Tip You can also charge your phone battery by connecting your phone to your
computer using the USB cable. Charging this way takes much longer than
using the AC charger. Do not, however, connect the Palm
® Touchstone TM
charging dock (sold separately) to your computer.