... , at airports, at stations or whereverthere is no wall outlet available. Take it to charge anytime, anywhere any ... check.• Power pack is charged via the USB outlet or USB port of PC• Built-in overcharge, ... at airports, at stations or whereverthere is no wall outlet available.Take it to charge anytime, anywhere any ... check.• Power pack is charged via the USB outlet or USB port of PC• Built-in overcharge, ...