For all purposes and machines in Festool's 18 V range – the 5.0 Ah battery has enough power for all applications. This strong universal battery impresses with fantastic energy and long operating time on each charge. This is because the battery works perfectly with our brushless EC-TEC motors. Thanks to AIRSTREAM technology, it is actively cooled before and during charging in the AIRSTREAM charger and is quickly fully charged and ready for use again. Since it is equipped with Bluetooth®, it automatically starts a connected vacuum cleaner at the same time as the tool – and in combination with the Festool Work app, it provides detailed information about charging status and operating data, such as temperature or charging cycles. And of course, it is also fully secured with Festool Service.