Car/Vehicle Refrigerator Power Supply Compatible With Milwaukee/Dewalt/Makita 18V Batteries

Maximize the utility of your professional battery kits with this High-Power DC-to-DC Step-Down Converter. Engineered for the industry's leading 18V/20V battery ecosystems, this industrial-grade regulator transforms your tool batteries into a high-capacity 12V DC power source. Delivering up to 20A of current, it is the ultimate solution for powering vehicle refrigerators, 12V air compressors, and automotive appliances during outdoor projects, travel, or remote job site operations.

Core Utility & Performance Features

• High-Efficiency 240W Output: Engineered with advanced step-down technology, this converter provides a stable 12V DC output with an impressive 95% efficiency rating. With a maximum current of 20A, it easily handles high-draw devices such as portable car fridges, high-velocity fans, and heavy-duty 12V lighting.

• Integrated Cigarette Lighter Interface: Features a standard automotive female socket, allowing for instant "plug-and-play" connectivity with your existing car chargers and appliances. This eliminates the need for complex wiring or permanent vehicle modifications.

• Dual-Port Fast Charging Hub:

  • USB-A Port: Reliable power for standard mobile electronics and peripherals.

  • USB Type-C Port: Optimized for high-speed delivery to modern smartphones, laptops, and tablets.

• Intelligent Multi-Stage Protection: Equipped with a sophisticated smart chip to defend against over-current, over-load, and over-heat scenarios. The unit includes a critical Low-Voltage Cutoff at 14.4V, which automatically shuts off the converter to prevent permanent damage to your lithium-ion battery cells.

• Universal Platform Integration: Designed for total cordless freedom. By leveraging your professional Milwaukee, DeWalt, or Makita inventory, you create a portable power bank far more powerful than standard consumer-grade alternatives.

Technical Specifications

• Input Voltage: DC 18V – 21V

• Output Voltage: DC 12V (Regulated)

• Max Output Current: 20A

• Max Output Power: 240W

• Efficiency: ≥ 95%

• Safety Cutoff: 14.4V (Low Voltage Protection)

• USB Ports: USB-A + USB Type-C

• Certifications: CE, FCC, ROHS Certified

Battery Compatibility Guide

This unit is a "Skin Only" converter. Please select the model corresponding to your battery platform:

• Milwaukee Model: Compatible with M18 series (48-11-1850, 48-11-1862, 48-11-1880, etc.).

• DeWalt Model: Compatible with XR 18V/20V and FlexVolt 60V series (DCB203, DCB205, DCB206, etc.).

• Makita Model: Compatible with 18V LXT series (BL1830B, BL1840B, BL1850B, BL1860, etc.).

Maintenance & Operation Guide

Snagg It Professional Tip: For running high-draw appliances like vehicle refrigerators for extended periods, we recommend using a 5.0Ah or 6.0Ah battery to ensure stable amperage and maximum runtime. The active voltage regulator ensures that even as the battery depletes, your 12V device receives a consistent, safe current. To prevent any slow parasitic drain on your cells, always remove the battery from the converter when your devices are not in use. This heavy-duty regulator is a "must-have" for your camping or service vehicle kit, ensuring you can keep your gear running as long as you have a tool battery nearby.