This section contains useful resources for Stihl's popular MSA 220 TC-O Chainsaw. Stihl's most powerful cordless top-handle. Idea for removing pieces of trunk, crown correction, or removing dead wood. TC-O model features an oil sensor on an LED display which gives the user a warning when the chain oil level is low. The AP 300 S battery allows the user up to 29 minutes of operation time.