Strengths and benefitsEffortless work: At just 600 g, it is 20% lighter and 50% more compact than a 5.2 Ah battery packFull power: Thanks to the Li-HighPower cell technology, it is powerful enough for every applicationExtremely durable: The high-current-resistant cells ensure durabilityFor stress-free work: The battery packs are, of course, completely covered with Festool ServiceDust extraction starts automatically: The Bluetooth® version automatically starts the connected mobile dust extractor when the tool is switched onBluetooth® lithium-ion (Li-ion) battery pack with AIRSTREAM function for all Festool 18 V cordless tools (except CXS, TXS, ETSC 125, RTSC 400, DTSC 400)Bluetooth® enables the CLEANTEC mobile dust extractor to be started automatically when the cordless tool is switched on (Bluetooth®-compatible mobile dust extractor is required), in self-service display packWarranty all-inclusive--> Find out more