The Swagtron SwagCycle Pro comes with a built-in cable that you can use to charge this electric bike. Simply take out the cable from the bike’s storage compartment and plug it into your wall outlet. The bicycle LED will turn green when the battery fully charges so that you can remove the charging cable. Another great feature that the Swagtron SwagCycle Pro offers is a USP port that you can use to charge any smart device.