The Li-HighPower Compact battery allows you to work effortlessly, weighing only 600 grams. It is 20% lighter and 50% more compact than a standard 5.0 Ah battery. However, the light weight does not compromise the excellent performance. Thanks to its Li-HighPower cell technology, it provides enough power for every application (for extremely heavy-duty work and for the AGC 18, HKC 18 and TSC 55 K, we recommend the 8.0 Ah Li-HighPower battery). The battery with Bluetooth® connection automatically starts the system vacuum connected to the tool when the cordless tool is switched on - and informs you via the Festool app of the exact charging status and usage information such as temperature or charging cycles. Of course, it is also covered by the all-encompassing Festool Service warranty.