A studio product shot of the Bosch 18V starter kit containing one black and red CORE18V 4.0 Ah compact battery and one black GAL18V-40 compact charger.
A product diagram of the Bosch GAL18V-40 charger with callouts for the error indicator light, regulated dual-mode charging, AMPShare system compatibility, battery-status indicator, and wall mounting slots.
A product diagram of the Bosch CORE18V 4.0 Ah battery with callouts for high power 21700 cells, power and runtime improvements, AMPShare system compatibility, CoolPack 2.0 technology, copper end plates, and a high-resolution charge-status indicator.
A direct side-profile view of the Bosch GAL18V-40 lithium-ion battery charger showing its compact, angled design.
A direct side-profile view of the Bosch CORE18V 4.0 Ah battery highlighting the branding and the compact single-layer cell housing.
A side-by-side view showing both the front and back of the Bosch CORE18V 4.0 Ah battery, illustrating the red release button on the front and the AMPShare branding and LED fuel gauge on the back.
An informational graphic comparing the previous battery housing design with the updated AMPShare branded housing, labeled Same Battery. New Look.
A graphic showcasing the AMPShare multi-brand compatible 18V battery system powered by Bosch, featuring several 18V batteries of varying capacities from 4 Ah to 12 Ah.
A promotional graphic stating that Bosch 18V charger and battery kits are covered by a limited warranty, offering 5 years for the charger and 3 years for the battery.
A studio product shot of the Bosch 18V starter kit containing one black and red CORE18V 4.0 Ah compact battery and one black GAL18V-40 compact charger.
A product diagram of the Bosch GAL18V-40 charger with callouts for the error indicator light, regulated dual-mode charging, AMPShare system compatibility, battery-status indicator, and wall mounting slots.
A product diagram of the Bosch CORE18V 4.0 Ah battery with callouts for high power 21700 cells, power and runtime improvements, AMPShare system compatibility, CoolPack 2.0 technology, copper end plates, and a high-resolution charge-status indicator.
A direct side-profile view of the Bosch GAL18V-40 lithium-ion battery charger showing its compact, angled design.
A direct side-profile view of the Bosch CORE18V 4.0 Ah battery highlighting the branding and the compact single-layer cell housing.
A side-by-side view showing both the front and back of the Bosch CORE18V 4.0 Ah battery, illustrating the red release button on the front and the AMPShare branding and LED fuel gauge on the back.
An informational graphic comparing the previous battery housing design with the updated AMPShare branded housing, labeled Same Battery. New Look.
A graphic showcasing the AMPShare multi-brand compatible 18V battery system powered by Bosch, featuring several 18V batteries of varying capacities from 4 Ah to 12 Ah.
A promotional graphic stating that Bosch 18V charger and battery kits are covered by a limited warranty, offering 5 years for the charger and 3 years for the battery.
BOSCH

Bosch GXS18V-15N15 18V Starter Kit with CORE18V 4.0 Ah Advanced Power Lithium-Ion Battery GAL18V-40 4-Amp Compact Charger AMPShare System Compatible

In stock
SKU: GXS18V-15N15
$99.00 USD

Description

Fuel Your Productivity with Lightweight High-Performance Power

The Bosch GXS18V-15N15 Starter Kit is the perfect entry point or expansion for professionals seeking high power without the weight. Featuring the CORE18V® 4.0 Ah Advanced Power Battery, this kit delivers 60% more power and twice the runtime of standard 2.0 Ah batteries while maintaining a compact, single-layer cell design. Whether you are drilling into concrete, grinding metal, or performing light-duty chipping, this battery provides the efficiency needed for standard to medium-duty applications without adding unnecessary bulk to your tool.

To keep you moving, the kit includes the GAL18V-40 Lithium-ion charger, which provides a 4-Amp charging current—double the speed of standard chargers. This smart charging system uses regulated dual-mode charging to reach an 80% charge quickly before switching to a long-life mode to preserve battery health. Fully compatible with the AMPShare™ System and the entire Bosch 18V cordless line, this starter kit ensures your tools are always ready for the next task.

Key Features

  • Lightweight Power Solution: The CORE18V® 4.0 Ah battery provides high-output performance in a compact frame, reducing user fatigue.
  • Enhanced Runtime: Delivers 2x the runtime and 60% more power compared to the standard BAT612 18V 2.0 Ah battery.
  • CoolPack™ 2.0 Technology: Exclusive cooling design helps the battery last longer compared to non-CoolPack™ models.
  • Advanced 21700 Cells: Uses a single layer of high-power lithium-ion cells for maximum efficiency and reduced resistance.
  • High-Speed Charging: The 4-Amp charger delivers 2x the current of the GAL18V-20, fully charging a 4.0 Ah battery in just 65 minutes.
  • Regulated Dual-Mode Charging: Fast-charges to 80% then switches to long-life mode to maintain overall battery health.
  • High-Resolution Charge Indicator: Features a clear visibility battery status indicator for easy power monitoring.
  • AMPShare™ System Compatible: Designed for multi-brand compatibility across a wide range of cordless 18V products.

What's Included

  • (1) GBA18V40 18V CORE18V® Lithium-Ion 4.0 Ah Advanced Power Battery
  • (1) GAL18V-40 18V 4-Amp Standard Battery Charger

Specifications

Brand Bosch
Model Number GXS18V-15N15
Battery Chemistry Lithium-Ion
Battery Voltage 18V
Battery Capacity 4.0 Ah
Battery Watt Hours 72 Wh
Charger Amperage 4 Amps
Charge Time (4.0 Ah) 65 Minutes
Battery Weight 1.15 lbs.
Battery Dimensions 4.6" L x 3.0" W x 1.85" H
Cooling System CoolPack™ 2.0

Pro-Tip: To maximize the lifespan of your CORE18V lithium-ion batteries, try to avoid completely draining the cell to 0%. Recharging when the status indicator shows one bar remaining allows the regulated dual-mode charger to optimize the cell chemistry more effectively, ensuring years of reliable service.