Festool 577155 PHC18 Mobile Phone Charger

Turns the battery pack into a power bank. 
The PHC 18 mobile phone charger.
 

Works with any Festool 18 V battery pack: It doesn't matter which Festool 18 V battery pack you currently have to hand – the PHC 18 phone charger can turn them all into a power bank (excluding 3.1 Ergo battery packs). Just like with a cordless tool, simply position the smartphone on the charged battery pack and the smartphone will be supplied with power.

• Charges via a cable. Or inductive charging without a cable: Saves you searching for charging cables: Simply place your mobile phone on the phone charger and it will be inductively charged (provided that the mobile phone or smartphone supports inductive charging). Needless to say, you can also charge your device as usual via a charging cable in a USB port.
• Power for the whole team: The whole team always stays available since the PHC 18 phone charger charges up to three mobile devices at the same time and provides sufficient power for all of them.