Festool 578745 TBX 4 Tabless Battery BP 18 TBX 4 C-ASI 18V 4.0Ah

Festool's lightest path to more power. The TBX 4 introduces Festool's latest tabless cell technology to the familiar 18V platform, delivering higher power output, cooler operation, and longer service life with no added weight or bulk. By eliminating traditional cell tabs, energy flows more efficiently through the pack for stronger, more consistent performance under load and faster recharging when you need to get back to work. Tabless cell technology moves energy more efficiently for higher power transfer with less heat buildup, extending runtime and overall battery service life High output in a lightweight, well-balanced 1.32 lb (0.6 kg) compact form, ideal for medium- to high-demand applications where control and handling matter AIRSTREAM active cooling cools the pack before and during charging when paired with the AIRSTREAM SCA 16 rapid charger for faster turnaround Integrated Bluetooth automatically starts a paired Festool CLEANTEC dust extractor the moment your cordless tool switches on Festool app reports real-time charge level, temperature, and charge cycles so performance stays transparent and predictable Drops straight into your existing 18V kit and is backed by Festool's 3-year warranty