Using your 20V MAX* Cordless Edger Kit BCED400C1 is easy. First, charge the 20V MAX* battery fully with the included charger. Then, attach the blade to the edger. When you're ready to start, adjust the cutting depth according to your needs. Use the edge guide to make sure your cuts are straight and precise. As you work, keep in mind that you can edge up to 815 ft on a single charge. Be careful not to touch the blade while it's spinning. After you're done using the edger, unplug the battery. To keep it in good shape, clean the blade regularly and store the edger in a dry place. If you have any questions or run into problems, check the user manual or contact customer support.