I bought the Jet Pack to leave in our summer home to remotely control the thermostat for the furnace over the winter. The Jet Pack works fine for this purpose. However we do have power outages and some times for ore than a day. So I bought AIBOCN Battery Pack. I plugged the pack into the wall socket and then connected the battery to the Jet Pack. It does not charge the Jet Pack, but will charge my I Pad so I know it is working and the battery also is at full charge and is accepting current from the wall plug.