4ah bosch expert battery - exba 18v-40 -
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Bosch Expert Battery – EXBA18V-40 (4.0 Ah)
The Bosch Expert 18V EXBA18V-40 4.0Ah battery is the ideal professional solution for those seeking lightweight, easy handling, and reliability for everyday use of Bosch Professional tools. Perfect for precision work, assembly, and frequent use where balance and practicality make the difference.
Three Main Advantages
Perfect balance between weight and battery life: the 4.0 Ah EXBA18V-40 offers excellent working life while maintaining compact dimensions, ideal for prolonged use without tiring the operator.
Ideal for precision and assembly work: thanks to its low weight, it is particularly suitable for screwdrivers, drills and tools used continuously overhead or in confined spaces.
Full professional compatibility: fully compatible with all Bosch Professional 18 V tools and the AMPShare system for simple and flexible battery management.
Bosch expert starter set - 1 18v-40 battery + charger
The high-performance EXBA18V-40 battery delivers up to 2,000 W of heavy-duty peak power (based on internal lab testing; maximum instantaneous power when new and fully charged) in an extremely compact design. It uses advanced Tabless cell technology, unlike conventional batteries that contain cells with multiple tabs, only two of which act as current paths. This creates a limit that adds to the battery's resistance. Tabless cell technology overcomes this obstacle. It contains infinite parallel current paths instead of just two. The result: lower resistance, less heat buildup, astonishing power, and extraordinary energy density. Thanks to its new, durable and reinforced housing, excellent thermal management with COOLPACK 2.0, and Tabless cell technology, the EXBA18V-40 battery offers extended runtime, making it ideal for professionals who require durability and performance.

Up to 2,000W maximum power for heavy duty applications.

Lower internal resistance for high performance and extraordinary energy density.

Durable construction, reinforced casing and extraordinary heat management with COOOLPACK 2.0 and tabless cell technology.

Compatible with the Bosch Professional 18V System and batteries from the AMPShare multi-brand alliance.

Extended temperature range during charging from -10°C to +55°C when using EXPERT EXAL18V2-320 and EXPERT EXAL18V-160 .

The 5-LED indicator shows the battery charge status with remaining capacity and fault warning detection.
Technical data
- Battery voltage
- 18 V
- Battery capacity
- 4.0 AH
- Battery length
- 121 mm
- Battery width
- 80 mm
- Battery height
- 51 mm
- Battery weight
- 0.605 kg
- Package length
- 144 mm
- Package width
- 94 mm
- Package height
- 96 mm
Fabrizio's usage tips and suggestions
The Bosch Expert EXBA18V-40 4.0 Ah battery is the ideal solution for professionals looking for lightness, ease of handling and reliability in their daily work, especially when using tools frequently and for prolonged periods.
Designed for those who work with Bosch Professional 18 V tools, this battery represents a practical and functional choice, perfect both as a main battery and as a support unit always ready for use.
🔸 Bosch Expert EXBA18V-40 4.0 Ah battery: The 4.0 Ah capacity ensures excellent battery life for the most common professional applications, offering an ideal balance between runtime and low weight. It is particularly suitable for precision work, assembly, and continuous use.
🔸 Perfect for lightweight tools and precision work: Thanks to its compact size and low weight, it is ideal for screwdrivers, drills and tools used for long periods or in awkward positions, reducing operator fatigue.
🔸 COOLPACK Technology: The thermal management system keeps the battery cooler during use and charging, helping to increase lifespan, reliability and number of charge cycles , even with frequent use.
🔸 Full compatibility with Bosch Professional 18 V and AMPShare: Can be used on screwdrivers, drills, jigsaws, grinders and many other tools from the Bosch Professional 18 V system and the AMPShare ecosystem, ensuring maximum operational flexibility.
🔸 Professional performance for everyday use: Consistent power and immediate response make this battery ideal for installation, maintenance, workshop and daily professional jobs.
🔸 Bosch Expert Reliability: Battery designed to withstand shocks, vibrations and repeated work cycles, designed for those who work in the field every day and need equipment that is always ready.
In short: a compact professional battery that combines practicality, reliability and efficient energy management . With the Bosch Expert 4.0 Ah, you can work smoothly, precisely and without unnecessary interruptions.
For any technical information or advice on usage, please contact us: we're always ready to help you choose the best solution for your work.
Greetings from Masera!

Questions & Answers about the Bosch Expert 4Ah battery
Can I use it as a main battery or is it better as a spare battery?
It can easily be used as a main battery for everyday work, but it is also perfect as a second battery always ready in the kit.
Can it be left unused for a few months without getting damaged?
Yes, if stored in a dry place and at normal temperature it maintains its charge and performance well.
Is it suitable for overhead work or in confined spaces?
Yes, precisely because of its compact size it is particularly convenient in these situations.
What is the main advantage of the 4.0Ah battery?
The main advantage is its reduced weight. The 4.0 Ah batteries allow you to work longer with less fatigue, making them perfect for overhead work, assembly, and prolonged use.

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