Higher capacities give longer runtimes.
3-LED lit remaining charge display.
Protective rubber frame around battery
The Festool Bluetooth AIRSTREAM battery packs communicate with the Bluetooth module on the CT mobile dust extractors
Please note Festool 5.2Ah battery will be re-badged 5.0Ah, there is no noticeable change to battery capacity and this is a rolling change made by Festool.
