Using your DeWalt DCN662D1 is easy. First, charge the DCB203 2.0Ah battery with the DCB112 charger. Once charged, insert the battery into the nailer. You can choose between sequential or contact actuation modes using the tool - free selectable trigger. For different materials, use the tool - free depth adjustment to make sure the nails are countersunk just right. When you're working, the multi - functional LED lights will help you see better. If a nail jams, use the tool - free jam release to clear it quickly. In case the driver blade stalls, use the integrated tool - free stall release lever to reset it. As for maintenance, keep the nailer clean after each use. Wipe it down with a dry cloth. Store it in the provided kit bag when not in use. And remember, this nailer is compatible with all DeWalt 20V MAX* batteries, so you can swap them out as needed. Always follow safety guidelines when operating the nailer, like wearing safety glasses and keeping your hands away from the nail - firing area.