The Bosch BAT622 18V FatPack battery promises to increase productivity with the power tool industry’s first 6.0 Ah battery, offering up to 45% more run time over standard 4.0 Ah packs. Bosch claims its $129 BAT622 is the industry's lightest, most compact and longest-running FatPack-style battery. It is compatible with the complete line of Bosch 18V Lithium-ion power tools, including rotary hammers, impact drivers, reciprocating saws and other power tools. Bosch says its propriety CoolPack heat-sink housing keep batteries running cooler, extending life up to 100 times more recharge cycles than similar packs.
- BAT622 18V FatPack matches size and weight of Bosch 3.0 Ah, 4.0 Ah and 5.0 Ah 18V batteries
- Fuel gauge shows users how much power remains
- Battery works with Bosch tool’s electronic monitoring system to regulate voltage draw and operating temperature