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 Starter Kit GXS18V-15N15 18V CORE18V 4.0 Ah Battery GAL18V-40 4-Amp Charger (High-Power 21700 Cells CoolPack 2.0 Cordless System Power)

In stock
SKU: GXS18V-15N15
$99.00 USD

Description

Bosch Promtional Logo Logout

Trade-Focused 18V Power Station with Advanced CORE18V 21700 Single-Layer Battery and 4-Amp Rapid Dual-Mode Charger

The Bosch GXS18V-15N15 18V Starter Kit provides professional-grade lithium-ion battery performance and high-speed electrical replenishment to maximize jobsite cordless utility. Engineered with a single-layer array of next-generation 21700 cells, the included CORE18V 4.0 Ah Advanced Power Battery delivers 60% more power and twice the runtime of standard batteries while integrating CoolPack 2.0 thermodynamic housing structures. This cordless system solution resolves heavy-duty tool stalling, premature thermal shut-offs, and chronic charging delays during intense metal fabrication and structural wood boring by matching the battery with a 4-Amp GAL18V-40 compact charger that reaches an 80% charge in just 48 minutes. Fully compatible with the multi-brand AMPShare system, this high-efficiency cordless package ensures reliable power transmission and extended tool lifespans across demanding trade environments.

Best Used For:

  • High-Torque Timber Drilling: Driving heavy structural self-tapping screws, large wood auger bits, and deep hole saws using high-draw 18V drill drivers.
  • Metal Grinding and Polishing: Powering angle grinders and sanders continuously without thermal overload shutdowns, utilizing the advanced heat-dissipating CoolPack casing.
  • Overhead Rotary Hammering: Drilling anchorage holes in solid concrete structures with SDS-plus rotary hammers while keeping the tool weight light.

Key Performance & Safety Features

  • Advanced 21700 Battery Cells: Uses high-density, single-layer lithium-ion cell structures to provide maximum current flow and minimal internal resistance.
  • Thermodynamic CoolPack 2.0: Heat-conductive casing material wraps individual battery cells to channel damaging thermal energy away, extending service life.
  • Regulated Dual-Mode Charger: Safely rapid-charges the battery pack up to 80% capacity before switching to a trickle-current mode to preserve cell longevity.
  • LED Fuel Gauge: Five-stage, high-resolution visual charge indicator on the battery pack allows for immediate power level monitoring.
  • High-Current 4-Amp Current Output: Delivers twice the charging speed of standard 2-Amp units, fully recharging the 4.0 Ah battery in 65 minutes.

What's Included

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

Technical Specifications

Specification Value
Brand Name Bosch
Model Number GXS18V-15N15
Battery Chemistry Lithium-Ion
Operating Voltage 18V DC
Battery Capacity 4.0 Ah
Energy Rating 72 Wh (Watt-Hours)
Charger Output Current 4.0 Amps
Total Charge Time (4.0 Ah) 65 Minutes (100% Capacity) / 48 Minutes (80% Capacity)
Battery Cell Type Advanced 21700 Cylindrical Cells
Thermal Dissipation Tech CoolPack™ 2.0 Active Passive Radiating System
Battery Unit Weight 1.15 lbs.
Battery Dimensions 4.6 in. Long x 3.0 in. Wide x 1.85 in. High
Ecosystem Compatibility Bosch 18V Cordless Tools and AMPShare Multi-Brand System

Pro-Tip: Always charge your lithium-ion packs using the dual-mode regulated charger on a flat, dry, well-ventilated surface. Standard lithium cells hold charge best when kept within comfortable ambient temperature boundaries, so avoid leaving tools inside unventilated vehicle trunks or under direct sun during hot summer shifts.