Two tabless batteries

Cordless - more power
to build better

Get more out of your cordless tools with Tabless

Engineered for maximum power in demanding applications. Tabless battery cell technology ensures quicker charging and extended runtimes—even when working in extreme temperatures.

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    + 68 %
    More screws per charge
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    + 43%
    More sanding per charge
  • %IMG_ALT% %IMG_ALT%
    + 31%
    More cuts per charge
  • %IMG_ALT% %IMG_ALT%
    2x
    Faster charging time
  • %IMG_ALT% %IMG_ALT%
    + 68 %
    More screws per charge
  • %IMG_ALT% %IMG_ALT%
    + 43%
    More sanding per charge
  • %IMG_ALT% %IMG_ALT%
    + 31%
    More cuts per charge
  • %IMG_ALT% %IMG_ALT%
    2x
    Faster charging time

*Performance varies by application

TABLESS

The next generation of batteries

Key Features

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    More power for the toughest applications

    TBX batteries with tabless cell technology deliver the additional power your cordless tools need to take on the toughest applications with confidence. Reduced internal resistance allows each cell to deliver more energy, driving higher efficiency and greater productivity across every task. The advanced cell design also helps the batteries stay cooler under heavy load and during continuous use.

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    Extended runtimes with reduced charging times for maximum productivity.

    Stay focused on any task with fewer disruptions. Tabless technology makes it possible, extending the runtime of the tools and shortening the charging times of the batteries. The batteries cool down much quicker even while charging, meaning you can charge empty batteries faster.

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    Longer service life and resistance to extreme temperatures

    Tabless technology extends the service life of the batteries. Thanks to lower heat development and optimized energy flow, components are protected and last longer. Another advantage: the tabless batteries are more reliable in extreme temperature fluctuations - even after a cold winter's night in the vehicle, the tools are immediately ready for use. Festool's 3-year wear and tear warranty also applies to the tabless batteries so you don't have to worry about anything.

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    More power for the toughest applications

    TBX batteries with tabless cell technology deliver the additional power your cordless tools need to take on the toughest applications with confidence. Reduced internal resistance allows each cell to deliver more energy, driving higher efficiency and greater productivity across every task. The advanced cell design also helps the batteries stay cooler under heavy load and during continuous use.

  • %IMG_ALT% %IMG_ALT%
    Extended runtimes with reduced charging times for maximum productivity.

    Stay focused on any task with fewer disruptions. Tabless technology makes it possible, extending the runtime of the tools and shortening the charging times of the batteries. The batteries cool down much quicker even while charging, meaning you can charge empty batteries faster.

  • %IMG_ALT% %IMG_ALT%
    Longer service life and resistance to extreme temperatures

    Tabless technology extends the service life of the batteries. Thanks to lower heat development and optimized energy flow, components are protected and last longer. Another advantage: the tabless batteries are more reliable in extreme temperature fluctuations - even after a cold winter's night in the vehicle, the tools are immediately ready for use. Festool's 3-year wear and tear warranty also applies to the tabless batteries so you don't have to worry about anything.

Battery packs: Overview

Find the right Battery and Charger for your tool.

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  • BP 18 TBX 4 C-ASI
    Tabless Battery pack
    BP 18 TBX 4 C-ASI
  • BP 18 TBX 8 ASI
    Tabless Battery pack
    BP 18 TBX 8 ASI
  • BP 18 Li 3,0 Ergo I
    BP 18 Li 3,0 Ergo I
  • BP 18 Li 5,0 HP-ASI
    BP 18 Li 5,0 HP-ASI
Application image

Customer testimonials

Cordless Power. Tested by Trade Professionals.

Festool cordless tools deliver the power, precision, and durability trade professionals rely on. Now with longer runtime and faster overall performance. Field testing shows the system helps you work faster and smarter across a wide range of applications. The new Festool TBX tabless battery technology supports these gains with improved efficiency and charging speed.

The right tool for every job

Full Range of Cordless tools.

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Reliable service backed by a three-year warranty - including batteries!1

So you can concentrate on what's important — your work.

FAQ

Frequently asked questions and answers

Can't find the right answer to your question here? In this case, please contact our customer service: customerservice@festoolusa.com.

What’s the difference between Tabless and Li-HighPower batteries?

Traditional Li-HighPower batteries use round cells with a single tab at each pole. All current flows through that one point, which increases internal resistance and generates heat. Excess heat reduces runtime, shortens service life, and can cause the battery to shut down before all available capacity is used.

Tabless round cells use multiple tabs, allowing current to flow through several paths at once. This dramatically reduces internal resistance and heat buildup—resulting in longer runtime, longer battery life, and more consistent performance.

Think of it like traffic: a single-lane road versus a multi-lane highway. More lanes mean smoother flow and fewer slowdowns.

What are the advantages of tabless cells?

The tabless cell design delivers clear performance benefits.

Tabless Batteries:

  • deliver a noticeable increase in performance,
  • provide longer runtime,
  • offer extended service life compared to conventional cell designs,
  • maintain strong performance in both hot and cold conditions,
  • charge faster than traditional batteries
What does "TBX" stand for?

TBX stands for Tabless Battery Extra Power.

The TBX designation appears on all Tabless batteries to make them easy to identify and to clearly distinguish them from previous Li‑HighPower batteries.

Which 18V cordless tools benefit most from tabless technology?

Tabless cell technology benefits all Festool 18V cordless tools. It acts as a performance upgrade across the entire 18V cordless lineup.

Which Batteries will be converted to the new tabless technology?

The existing 4.0 Ah and 8.0 Ah Li-HighPower batteries are being converted to tabless technology. These will be offered as TBX 4 and TBX 8 batteries.

The new TBX batteries fully replace the previous Li-HighPower batteries. They are not an additional option in the battery lineup.

Will tabless batteries cost more than previous versions?

No. Tabless batteries will be offered at the same price as the previous models. The performance benefits of tabless technology are passed on to customers at no additional cost.

Do tabless batteries require special chargers?

No. All Festool 18V chargers remain fully compatible with tabless batteries. For the fastest charging times, use the SCA 16 battery charger.

Will the introduction of tabless batteries change tool interfaces or existing features?

No. The battery interface remains unchanged. TBX batteries are fully compatible with all Festool 18V cordless tools, just like the previous 4.0 Ah and 8.0 Ah Li-HighPower batteries. Features such as Bluetooth® functionality and the durable rubberized housing are also retained.

The biggest change is inside the battery with the move to tabless cell technology. Externally, updated labeling makes the new tabless batteries easy to identify and distinguish from previous Li-HighPower batteries.

Why are the 5.0 Ah batteries not converted to tabless technology?

This is due to the cell formats used in each battery:

4.0 Ah and 8.0 Ah batteries use 21700 cells
5.0 Ah batteries use 18650 cells

In the power tool category, higher-capacity batteries are increasingly based on the larger 21700 cell format. As a result, new cell technologies such as tabless designs are typically introduced there first. For this reason, tabless technology is currently used in the 4.0 Ah and 8.0 Ah batteries.

Why might the 5.0 Ah battery still be the right fit for your needs?

With the introduction of tabless batteries, we have refined our lineup to ensure each battery is well matched to specific tools and applications. The 5.0 Ah battery remains a strong choice for tools that benefit from a balanced mix of performance, runtime, and ergonomics.

It delivers ample power for these applications, in some cases more than the TBX 4 battery, while remaining noticeably lighter than the TBX 8. The result is a battery that helps reduce fatigue and makes handling easier during longer work sessions.