Using the Makita XRJ05T is a breeze. First, make sure the 18V LXT Lithium - Ion 5.0 Ah battery is fully charged. You can check the charge level using the integrated L.E.D. indicator on the battery. To start cutting, hold the saw firmly with the rubberized soft - grip handle and use the large two - finger variable speed trigger. You can choose between two speed settings depending on your task. When changing the blade, use the tool - less blade change system for a quick swap. Remember to use the retractable tool hook to secure the saw when you're not using it. For maintenance, keep the saw clean and dry. The Extreme Protection Technology (XPT) helps with dust and water resistance, but it's still a good idea to wipe it down after use. If you notice any unusual vibrations or performance issues, stop using the saw and have it checked. Also, store the battery in a cool, dry place when not in use to maintain its performance.