The Festool battery 18V BP 18 TBX 4 C-ASI delivers powerful, efficient performance in a compact and lightweight design. Built with advanced TBX battery tabless cell technology, this 4.0Ah battery provides consistent power output, reduced heat build-up, and longer service life—ideal for professional tradespeople working across the Festool 18V platform.
Weighing just 600g, this Festool battery 18V offers the perfect balance between power and manoeuvrability. With integrated Bluetooth functionality and AIRSTREAM fast-charging compatibility, it ensures maximum productivity on-site with minimal downtime.
Key Features & Benefits of this Festool 18V TBX Battery
High Output Performance – This Festool battery 18V uses TBX battery technology to deliver consistent power for demanding applications
Lightweight & Compact – At only 600g, it reduces fatigue during prolonged use
TBX Tabless Cell Technology – Improves energy flow, reduces heat, and extends overall battery lifespan
AIRSTREAM Fast Charging – Rapid recharge times (approx. 25 minutes with compatible chargers)
Bluetooth Connectivity – Automatically activates compatible Festool dust extractors when the tool is switched on
Smart Battery Monitoring – Connects to the Festool app to track charge level, temperature, and usage data
LED Charge Indicator – Quickly check remaining battery life at a glance
Durable Construction – Soft-grip casing protects the battery in tough site conditions
Why Choose a Festool TBX Battery?
The TBX battery range represents the next generation of Festool battery 18V technology. Compared to standard batteries, TBX batteries deliver higher performance with improved efficiency and reduced thermal stress. This results in longer runtime, faster charging, and increased durability—making them a reliable choice for professional users.
The 4.0Ah version is particularly suited to users who want a lightweight Festool battery 18V without sacrificing power.
Ideal Applications
General to high-demand cordless applications
Jobs requiring a lightweight Festool battery 18V for improved handling
Professional use across all compatible Festool 18V tools
578745 Specifications
Voltage: 18V
Capacity: 4.0Ah
Battery Type: TBX battery (Tabless Li-Ion)
Weight: 0.6kg
Connectivity: Bluetooth
Charging System: AIRSTREAM compatible
