Using your Inferno as a Pass-through is very simple.
To use the Inferno as a pass through:
- Unscrew the bottom cap of the battery.
- Plug int he mini USB end of the charging cable into the mini USB port on the battery.
- Plug the USB end of the charging cable into any standard USB port.
You are now read to continue using your Inferno battery as a pass-through.
In pass-through mode it is still using the power from the internal battery and not from the USB power port, so if you battery is fully drained you will need to wait about two minutes for the battery to build up enough charge to be used in pass through mode.