NEW! Introducing our brand new 4.0Ah 12V power tool battery pack! ACDelco power tools are built for people who make a living with their tools, day in and day out and require exceptional sturdiness and reliability. G12 Series Compact Series are designed with power & compact size in mind. The family includes a wide range of tools, from drill driver to ratchet wrench and polisher, all share a common slim 12V Li-ion battery platform. High Performance - Provides excellent performance with higher Cell Capacity per Unit Weight, Low Self-discharge and No Memory Effect. Thermal protection circuit prevents charging battery cells from damage caused by extreme temperature conditions. Thermal Protection -  To prevent charging battery cells from damage caused by extreme temperature conditions: has a lightweight and slim design for ease of use. Li-ion Battery Cells - Each battery cell is tested and certified with the highest safety and quality standards before production and assembly. Interchangeable - Our battery pack works with all of our G12 tools, ranging from polishers to drills to ratchet wrenches and more! Specifications -  Voltage: 10.8V (12V) Cell Capacity: 4.0Ah Charging Time: 30-45 Minutes Compatible with all G12 tools