Using your DeWalt DCCS670X1 chainsaw is easy. First, charge the 60V MAX* 3Ah battery using the included charger. Once charged, insert the battery into the chainsaw. Before starting, make sure the chain is properly tensioned using the tool-free chain tensioning and bar tightening knob. To operate, hold the chainsaw firmly with both hands and use the chain brake to start the saw. When cutting, keep the saw steady and let the blade do the work. Don't force it. After use, turn off the saw and remove the battery. To maintain your chainsaw, regularly check the chain tension and the oil level in the automatic oiler. Replace the oil as needed to ensure continuous lubrication. Also, store the chainsaw in a dry place and use the hard bar cover to protect the bar and chain. If you have any issues, refer to the 3-year limited warranty, 1-year free service contract, or 90-day money-back guarantee.