Using the DeWalt DCC2520B 20V MAX Brushless Cordless Air Compressor is easy. First, make sure the battery is fully charged. Then, connect your pneumatic tools to the 1/4 in. air fitting. You can start using it right away. When adjusting the pressure, use the OneTurn Regulator for quick and accurate results. Remember, each charge can drive over 850 nails, so plan your work accordingly. As for maintenance, keep the compressor clean and free from dust. Check the roll cage regularly to make sure it's protecting the critical components. If you're not using it for a long time, store it in a dry place. With proper use and care, this compressor will serve you well for a long time.