Using the Makita PC01R3 multi - cutter is easy. First, make sure the battery is fully charged. Insert the 12V Max CXT Lithium - Ion 2.0Ah battery into the tool. You can then start using it to cut materials like cardboard, carpet, leather, etc. Align the built - in sight line with the cutting area for precise cuts. When you're done using it, press the lock - on lever to turn it off. Here are some things to note. This tool is not compatible with 12V Max pod - style tools, batteries, and chargers, so don't try to use them together. Also, the battery has a protection circuit, but avoid overloading, over - discharging, and over - heating it. For maintenance, keep the blade clean. If it gets dirty, use a soft cloth to wipe it. The self - sharpening blade doesn't need much special care, but if you notice a significant drop in cutting performance, it might be time to have it checked. Store the tool in a dry place, and keep it in the provided tool bag when not in use.