Using this Makita 18V LXT combo kit is easy. First, charge the 18V LXT® 5.0Ah batteries using the included charger. It takes about 45 minutes. Once charged, insert the battery into the tool you want to use, either the hammer driver-drill or the impact driver. For the hammer driver-drill, select the right speed (0 - 550 or 0 - 2,100 RPM) depending on your task. The all-metal ½” self-ratcheting chuck makes it easy to hold the drill bit firmly. When using the impact driver, choose the appropriate 4-speed power selection for precise fastening. The Assist Mode and Tightening Modes can help you avoid common problems. The blower is also simple to use; just insert the battery and start cleaning up debris. As for the blower, it's a great addition for cleaning up debris on the job site. Just insert the battery and you're ready to blow away dust and small particles. When you're done using the tools, turn them off and remove the batteries. Store the tools in the included tool bag to keep them safe and organized. Keep the tools in a dry place to prevent damage. Clean the tools regularly with a dry cloth. Check the batteries for any signs of damage and don't overcharge them. With proper use and maintenance, this combo kit will serve you well for a long time.