Using the DeWalt DCK2100D1T1 Combo Kit is easy. First, charge the batteries using the 6 - Amp charger. It's compatible with both 20V MAX* and FLEXVOLT 20V/60V MAX* batteries. When using the DCD999 Hammer Drill, if you want more power, pair it with a FLEXVOLT battery. The 3 - mode LED on the drill is great for working in the dark. Just turn it on and enjoy 20 times brighter light than the DCD985. The LED spotlight mode has a 20 - minute shutoff, so you don't have to worry about it draining the battery. For the DCF887 Impact Driver, use the 3 - speed settings depending on your task. In speed 1, the Precision Drive feature helps you avoid over - tightening fasteners. The 3 LEDs on the impact driver give you good visibility even after you release the trigger. When it comes to maintenance, keep the tools clean after each use. Wipe them down with a dry cloth. If there's dust or debris inside, use compressed air to blow it out. Store the tools in the kit bag when not in use. And don't forget to check the batteries regularly. If they're not holding a charge well, it might be time to replace them. Also, if you want to use the Tool Connect feature on the DCD999, you'll need to buy the Tool Connect Chip DCE042 separately and connect it to the Tool Connect Site Manager app for easy asset management on the jobsite.
