Ansmann battery powerbank ansmann 1700 0028 p the ansmann 1700 0028 is a battery powerbank that offers additional battery power for a variety of mobile devices where electricity is not available p p the 5v 10400mah powerbank is a mobile energy station for charging usb devices on the move it contains a lithium polymer battery that can be charged up using a usb port and then used to charge devices such as mobile phones tablets and mp3 players etc p p the powerbank has a compact size