Tap into the confidence and flexibility of Bosch wireless charging. Create your optimal charging set up in between tasks, where you store it, or even as you drive between jobs. Be power ready, anytime, anywhere. The new 2.0 Ah 18 V wireless charging SlimPack battery offers more run time and 2x longer life with unique CoolPack Design technology. The advanced heat conductive housing keeps the battery cooler for long life. The compact size and lightweight make it perfect for professional work overhead. An integrated fuel gauge makes checking charge status quick and easy. And working in cold weather is no issue down to -4F. The WCBAT612 is compatible with all Bosch 18 V Lithium-Ion power tools.