HTC DROID Incredible - Manual (Page 31)

Basics 1
Charging the battery
The battery is partially charged when shipped. Before you turn on
and start using your phone, it is recommended that you charge
the battery. Some batteries perform best after several full charge/
discharge cycles.
Attach the power plug to the AC adapter.
Connect one end of the USB cable to the sync connector on your
phone.
Connect the other end of the USB cable to the USB port of the
AC adapter.
Plug the AC adapter into an electrical outlet to start charging the
battery.
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