Compatible With DW 20V Battery jump starter cable is compatible only for DeWalt 20v batteries, Easy to use even when your car battery drains, as long as you bring for 20V DW batteries.Safety and Stability Enhanced with a compact fan and made of pure copper to improve conductivity and safety, this battery Jump Starter offers protection against short-circuits, over-current, under-voltage, low-load, over-heat, over-voltage, over-load, and over-drain situations.Friendly Reminder 1. This jumper cable 20v to 12v does not include any batteries, it is just a bare tool. 2. If it is not in use, remove the charger station from your battery, or it will drain the battery.How to Use Connect the red clip of the jumper cable to the positive terminal "+" of the car, then connect the black clip to the negative terminal "-" of the car. Connect for M18 18V battery and Charge the car battery for about 2 minutes and then starting the car. Turn the key or use the start button to start the car, with the ignition time not exceeding 2 seconds. when the car starts, immediately remove the battery.New Vesion Jump Starter Specifications: Wire: 11 AWG wire, The applicable range is 12 voltage car (not fit for 24V). Perfect for most motorcycles, Cars, and SUVs, Capable of jumpstarting up 3.5L diesel engines.