This device is a 150W Multifunction Intelligent Power Inverter designed to slide directly onto standard 18V to 21V cordless power tool lithium-ion batteries (such as Makita-style batteries) to convert their DC power into mobile AC and USB energy. It acts as a highly portable power station ideal for outdoor work, camping, road trips, or emergency power outages.

• Multi-Port Charging Interface: Equipped with multiple output channels, including two multi-configuration AC outlets, dual standard USB ports, and a fast-charging Type-C port. 
• LED Digital Display Screen: A built-in 3-digit real-time LED screen monitors and continuously displays the input lithium battery voltage (detecting the 18V–21V range). 
• Power Capabilities: Delivering a total continuous output power of up to 150W (with standalone AC outlet usage optimized around 120W), it relies on a corrected modified sine wave output. 
• Advanced Intelligent Protections: An upgraded smart chip manages electronic safety, protecting connected equipment against overheating, overloads, and short circuits. 
• Rugged & Thermal-Efficient Design: Built with a robust ABS plastic outer casing to withstand rugged jobsite conditions, alongside ventilation slots for steady heat dissipation during continuous power operation. 
• Physical Master Switch: Features an independent on/off rocker switch on the side, preventing vampire draw and conserving source battery power when not in active use.