beagle board black rev c

i am using bbb rev c.
in BBB rev C connect mini usb power supply with 1A 5V Li-Ion battery but it not work device is power up but when i start camera it is hang device
what is problem i dont know

On Mon, 2 Nov 2015 02:05:13 -0800 (PST),
hiren.thumar2702@gmail.com declaimed the
following:

i am using bbb rev c.
in BBB rev C connect mini usb power supply with 1A 5V Li-Ion battery but it
not work device is power up but when i start camera it is hang device
what is problem i dont know

  Off-hand -- one can only expect a live USB port to pass 500mA max.
Ports working with more are either non-standard or meant to be used as
charging ports when data flow is disabled.

  You might have better luck fitting a barrel connector to the battery
and using the dedicated power jack on the BBB.