Tabless Battery Pack BP 18 TBX 4 C-ASI

Illustrations are examples. Please note the variant and scope of delivery.

For all 18-volt devices (except ETSC 125, RTSC 400, DTSC 400)

Product details

Functions

More power, less heat. Built smarter.

The TBX 4 Battery introduces Festool’s latest tabless cell technology, delivering higher power output, cooler operation, and longer service life—without added weight. By eliminating traditional cell tabs, energy flows more efficiently through the battery, reducing heat buildup while improving power delivery, runtime, and charging speed. The result is stronger, more consistent performance for demanding applications, with less stress on the battery over time. Paired with Festool’s AIRSTREAM charging system, the TBX 4 battery is actively cooled before and during charging when used with the AIRSTREAM SCA 16 quick charger. This active cooling allows the battery to recharge faster and return to work sooner—ideal for professionals who rely on continuous productivity. The optimized energy flow of tabless technology not only boosts tool performance but also helps extend overall battery lifespan. Integrated Bluetooth® connectivity adds smart functionality, automatically starting a paired Festool dust extractor when the cordless tool is switched on. When used with the Festool app, users can access detailed battery data including charge level, temperature, and charge cycles. Compact, powerful, and intelligent, the TBX 4 battery delivers advanced performance in a familiar form factor—and is fully backed by Festool’s 3-year warranty for complete peace of mind.

Maximum output when it counts. Advanced tabless cell technology delivers strong, consistent power—even for demanding applications—by improving energy flow and reducing internal resistance.
Lightweight power for reduced fatigue. 4.0 Ah capacity delivers full power at just 1.3 lbs (600 g), helping reduce fatigue during extended use without sacrificing performance.
Extended battery service life. Lower heat generation reduces stress on the cells, helping extend overall battery lifespan and maintain performance over time.
Reliable performance in tough conditions. Tabless battery design maintains dependable output in both hot and cold environments, keeping tools ready across a wide range of jobsite conditions.
Faster recharge cycles. Low heat buildup allows the battery to be recharged immediately after use, minimizing downtime between tasks.
Smart battery management. When used with the Festool app, Bluetooth® functionality provides access to detailed battery data including charge level, temperature, and charge cycles.
Clear charge status at a glance. Integrated LED indicators display the current charge level anytime, so you always know when you’re ready to work.
Stable, tool-protective design. Soft-touch perimeter protects the tool and provides a secure resting surface, even on sloped or uneven work areas.
Backed by Festool Service. Covered by Festool Service for stress-free ownership and long-term reliability.
Rapid AIRSTREAM charging. When used with the AIRSTREAM SCA 16 quick charger, active cooling enables recharge times of approximately 25 minutes, getting the battery back to work faster.
Automatic dust extraction start. Bluetooth® connectivity automatically starts a paired Festool CLEANTEC dust extractor when the cordless tool is switched on.
Bluetooth® lithium-ion (Li-Ion) battery with tabless cell technology and AIRSTREAM cooling

Highlights

The perfect accessories for your craft

Increased power output.

TBX batteries with tabless cell technology deliver higher power transfer with less heat buildup—resulting in stronger performance, longer runtime, and extended battery service life for demanding cordless applications.

High output with low weight.

The TBX 4 Compact Battery delivers impressive power in a lightweight, well-balanced design. At just 600 g, it provides high output without added bulk, making it ideal for medium- to high-demand applications where control and handling matter.

Smart connectivity with Bluetooth® and the Festool app.

Integrated Bluetooth® technology automatically starts a paired Festool dust extractor when the cordless tool is switched on. With the Festool app, users can monitor detailed battery information including charge level, temperature, and charge cycles—keeping performance transparent and predictable.

High power, low weight.

The TBX 4 Compact Battery delivers full power in a lightweight, well-balanced design. At just 1.3 lbs (600 g), it provides high output without added bulk—helping reduce fatigue while maintaining strong performance.

Rapid AIRSTREAM charging.

Thanks to low heat generation from tabless cell technology, TBX batteries can be charged immediately after use—no cooling phase required. When paired with the AIRSTREAM SCA 16 quick charger, active cooling enables fast recharge times so the battery is ready to work again quickly.

Intelligent battery management.

Bluetooth® connectivity allows the battery to pair with the Festool app, providing access to detailed operating data such as charge level, temperature, and charge cycles. Regular software updates help keep both the battery and connected tools up to date.

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