Product details:

The 2x12.0 Ah ARC Lithium Battery is equipped with an upgraded fuel gauge. you can now see how much battery power you have left in 20% increments. The ARC Lithium battery technology is the industry??s most advanced; equipped with patented Keep Cool Cell Technology; which keeps the cells cool and prolongs the life of the battery. Charger sold separately.ARC Lithium design keeps battery from overheating so equipment runs longer at full power
Shock-resistant design protects batteries and electronics from drops and the elements
Intelligent power management optimizes individual battery cells for maximum power, performance, and runtime
Charges 1x 12.0Ah battery in 75 minutes with EGO Power+ Turbo Charger (CH7000)
Fuel gauge indicator lights display remaining runtime in 20% increments