Bosch GBA 18V 4.0Ah Li-Ion Battery

Bosch GBA 18V 4.0Ah

The Bosch 18V 4.0Ah Battery delivers high-endurance performance for demanding construction and industrial applications. This lithium-ion power source utilizes advanced thermal management to ensure consistent power delivery under heavy loads. It is fully compatible with the entire Bosch Professional 18V System, allowing for seamless integration across various cordless tool platforms.

Built for the Job

This power unit serves as the backbone for high-draw cordless tools on the job site. Contractors and electricians rely on this specific capacity because it provides a superior balance between extended runtime and tool weight. It is engineered to withstand the rigors of heavy-duty drilling, grinding, and sawing where smaller 2.0Ah units would require frequent recharging. The internal housing protects the cells from vibration and impact damage common in workshop environments.

• Powers heavy-duty SDS Plus rotary hammers for concrete drilling tasks.

• Provides sustained energy for 115mm and 125mm angle grinders.

• Optimizes runtime for circular saws and reciprocating saws on timber.

Product Highlights

CoolPack Technology

The specialized heat-conductive housing manages internal temperatures to prevent cell degradation during high-current discharge.

Flexible Power System

• Backward compatible with all Bosch Professional 18V tools since 2008
• Forward compatible with new brushless motor technologies

Technical Specifications

What’s Included

• 1 x GBA 18V 4.0Ah Professional Lithium-Ion Battery

On-Site & Workshop Notes

• Monitor the integrated fuel gauge to manage charging cycles and avoid mid-task power loss.

• Ensure the battery clicks firmly into the tool rail to maintain a secure electrical connection during high-vibration drilling.

• Store this lithium-ion unit in a cool, dry place when not in use to maximize the total lifespan of the internal cells.

• This component survives drops of up to 3 meters onto concrete due to the robust outer casing design.