Using your DeWalt 20V MAX* Brushless Cordless Lawn Edger is easy. First, make sure you have a fully - charged battery (sold separately) and attach it to the edger. Adjust the 3 - position depth adjustment according to how deep you want to cut your lawn edges. Hold the edger with the adjustable bail handle in a comfortable position. Use the edge guide to keep your cuts straight and protect the blade. When you're done, turn off the edger. Remember, always wear safety goggles and appropriate footwear when using the edger. For maintenance, regularly clean the blade to remove grass and dirt. Check the blade for any signs of damage and replace it if necessary. Store the edger in a dry place to prevent rust and damage.