Bosch GBA18V40 18V CORE18V 4Ah Advanced Power Battery - Lightweight & High-Performance

Power that travels light

The Bosch CORE18V 4Ah Advanced Power Battery blends compact form with serious on tool capability. Weighing roughly 1.1 pounds, it stays balanced in hand, helping you maneuver where a lighter pack matters most. The design prioritizes efficiency without sacrificing performance, making it suitable for standard to medium‑duty tasks such as drilling into concrete, metal, and wood, as well as metal grinding, cutting, and light duty chipping. This combination of lightness and readiness creates a practical option for extended work sessions without the burden of heavier packs.

Key benefits at a glance

• 2x runtime versus the BAT612 18V 2Ah model, enabling longer sessions between charges
• 60 higher power output to support standard to demanding tasks without swapping packs
• High‑power lithium‑ion cells using a single layer of enhanced 21700 cells for improved efficiency
• Copper end plates, power rails, and a flexible circuit board reduce resistance for steadier power delivery
• CoolPack 2.0 technology cools the pack faster and can contribute to longer life with repeated use
• Compact operation with a weight of about 1.1 pounds, making it comfortable for longer jobs
• High‑resolution charge status indicator for quick visibility of remaining capacity
• AMPShare compatibility expands versatility across Bosch 18V tools and a growing range of cordless products
• Fully compatible with Bosch 18V tools and chargers for a cohesive cordless system

Real world usage scenarios

• On a scaffold, drilling into concrete while maintaining control through a lighter, balanced grip
• Metal grinding and cutting tasks where power and manageability complement workflow efficiency
• Maintenance and light chipping jobs where a compact, responsive pack reduces fatigue

Designed to pair with Bosch 18V tools and chargers, this CORE18V 4Ah battery offers a balanced blend of portability and performance. While results vary by tool and application, the combination of advanced cell chemistry, reduced resistance components, and effective thermal management points to a capable platform for a broad range of cordless tasks.