The strongest and most durable battery in Festool's range: Regardless of which machine or task it concerns, the Li-HighPower battery is there with maximum power and endurance (54% longer runtime than a 5.2 Ah standard battery), even during heavy work. Just like all Festool batteries, it works perfectly with Festool's brushless EC-TEC motors – to deliver everything on each battery charge. But the muscle pack also excels during charging: Thanks to AIRSTREAM technology, it is actively cooled before and during charging in the AIRSTREAM charger SCA 16 and is quickly fully charged and ready to use again. Since it is equipped with Bluetooth®, it automatically starts a connected vacuum cleaner simultaneously with the tool – and in combination with the Festool Work app, it provides detailed information about charging status and operating data, such as temperature or charge cycles. And of course, it is also fully secured with Festool Service.