Step-down Converter: Input Voltage: DC 18V-20V; Output Voltage: DC 12V; Output Current: 20A Max; Output Power 240W Max. Built in over low voltage protection, auto shut off if the battery voltage is lower than 14.4V, protect your battery and 12V devices Compatibility: Perfectly compatible for battery 18V lithium batteries, works with 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 etc. Our battery adapter connector is well-design, snugly fit your battery, easy to install and remove Better Safety: Voltage regulator built-in smart chip, features Over-current, Over-voltage, Under-voltage, Over-load, Low-load, Short-circuit, Over-heat multiple intelligent protection, protect your devices from overpower damage. Battery adapter also have added fuse holder and 30A fuse ensures you can use it safely Easy to Use: We combine the battery adapter and the voltage converter with 2 heat-resistant wires & fuse holder, more easy to use, just install the battery to the battery adapter and then connect the voltage converter to your device. (Note: Battery NOT Included) Widely Applicable: This converter suitable for various 12v devices, Perfect for upgrade power tools, ride on toys, golf carts, car trucks, speaker, monitoring equipment, , led strip light, work lights or robotics DIY etc. Colour:red Material:plastic Package Contents: 1 x Converter 1 Wheels Battery Adapter 1 x terminal 3 x 30A Fuse