Xantrex Technology Solar 400 - Manual (Page 44)

Operation
28 975-0328-01-01
Charging Devices via the USB Port
Low Battery Alarm
While in use, when the battery reaches 11 Vdc, the
Low-Battery Alarm will sound and display an error code
indicating that battery is low and the unit is about to be
shutdown to prevent battery damage.
When the battery reaches 10.5 Vdc, the unit will
automatically disconnect power to the USB outlet.
If the alarm sounds, disconnect any loads that may be in use
and recharge the unit as soon as possible.
Figure 3-8 Charging USB Devices
1. Press and hold the DC/USB button
for one second to activate the USB
port.
2. Check the state-of-charge to ensure
the battery is fully charged.
3. Plug the USB device using a USB
cable (not supplied) to the USB port
on the side of the unit.
4. Unplug the USB device when fully
charged.
5. Press and hold the DC/USB button
again to deactivate the DC socket.
Note : Recharge the Powerpack as
soon as battery level dips below normal.
1.