Motorola P4000 User Manual page 6

Charge devices
Charge up to two devices at the same time. Just plug in
a device and the P4000 portable charger turns on and
starts charging.
Note: If charging doesn't begin automatically, press the
Power/Charge button to begin charging.
4 Basics
Port 2
Plug in a USB
device here.
Port 1
Attach a microUSB
device here.
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