No more empty smartphone batteries! This PHC 18 Phone Charger acts as a clever adapter that transforms every Festool 18V battery pack into a power bank (with the exception of 3.1 Ah Ergo Battery Packs). No more searching for an available outlet or worrying about whether your smartphone battery will last until the end of the day – your mobile phone will always be ready to use. In addition, despite its compact design, the charger can supply up to three smartphones with power at the same time – via users' own charging cables or inductive charging.