Using the DeWalt DCL182 is a breeze. First, use the USB charging cable to connect the flashlight to a 5VDC 3A power supply (you'll need to get the power supply separately). After about 75 minutes, it'll be fully charged. When you're in a dim work area, you can either hold the flashlight in your hand or use the strong magnet and hook to attach it to a metal surface or hang it up, so you can work hands - free. For portability, just clip it to your belt. Remember, although it's IP54 rated for dust and water protection, don't submerge it in water. To keep it in good shape, clean it with a dry cloth regularly. And when not in use for a long time, make sure to store it in a dry place.