Bosch 18 V Li-Ion 4.0Ah Battery

Brand new sealed Bosch 18V 4.0Ah SlimPack battery (Model # BAT620). It offers up to 65% more runtime (compared to Bosch 3.0 Ah) and 2x longer life with Cool Pack design. The housing keeps the battery cooler for long life. Integrated fuel gauge. Works in cold weather down to -4F. Compatible with all Bosch 18 V Lithium-Ion power tools, radios and more.