Keep your promotion 'fully charged' with promotional power banks and portable phone charges! These popular promotional products supply power from their built-in battery via a USB port. Perfect for charging USB devices when on the move, a long flight or train journey!. With universal appeal, custom power banks and portable chargers are appreciated by everyone! This is never more so than when their phone or tablet reaches 10% battery life! Anyone who uses handheld media devices are a potential sales opportunity. Printed power banks provides your business with a huge target market!