The DEWALT DCB XR Li-Ion Battery has a compact, lightweight, slide pack design that offers longer life and is compatible with all DEWALT 10.8 Volt tools. No memory effect and virtually no self-discharge for maximum productivity and less downtime.

DEWALT DCB127 XR Slide Li-Ion Battery Pack

Battery Capacity: 2.0Ah.
Battery Chemistry: Li-Ion.
Voltage: 10.8 Volt.