Secure Battery Fit & Wide Compatibility: inverter is compatible with Milwaukee 18V lithium batteries, including 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, and 48-11-1815. Easy slide-on design locks battery in place during use
Smart Safety Protection: power inverter built-in cooling fan and intelligent chip guard against overheat, overload, over-current, short-circuit, and over-discharge for reliable operation
Compact & Travel-Ready: Weighs only 0.68 lb ( 4.3" × 2.7" × 3.1" ), fits in a tool bag or backpack for easy carry anywhere. (Battery not included; does not charge batteries; keep vents clear during use. )