Check that the myPower power switch
is switched to On.
Verify that the voltage and current
consumption of the device you wish to charge is not
more than 5V or 500mA. If the device consumes more
than the maximum provided by myPower, the device will
shut down when turned on and cannot be charged by myPower.
Check that the USB charging cable is connected to
both myPower and the device, and that the adapter plug
fits snugly into the power jack on your device. If
not, try another adapter.
Verify that the polarity of the charging cable power
jack matches the adapter plug. To do this, identify
the device polarity by locating the polarity symbol
in the area around the power connector jack. If the
device polarity is center positive, match the positive
symbol (+) on the selected adapter plug to the positive
symbol on the power output cord and connect as shown
in the top right figure. If the device polarity is
center negative, match the positive symbol (+) on the
selected adapter plug to negative symbol (-) on the
output cable and connect as shown in the bottom right
Verify that a battery is installed in the device as
some devices will not function without a battery installed.