2x Festool 577660 18V 5.0Ah Lithium Battery BP18 5Ah AirStream Bluetooth Pack Powerful all-rounder: 5.0 Ah battery packs for endurance and power development for all applications Quicker charging: In combination with the SCA 8 AIRSTREAM rapid charger, the battery pack is charged quickly and effectively with active cooling before and during the charging procedure Practical: LED display quickly shows the remaining battery capacity Safe: All-round frame made from soft-grip material for protecting the machine and setting it down safely on inclined surfaces Convenient: Bluetooth® enables the CLEANTEC mobile dust extractor to be started automatically when the cordless tool is switched on (use of a Bluetooth®-compatible mobile dust extractor is required) With smart extensions: The Festool.