Why does it have a on off button.. the only thing i dont like about my paslodes is that i often forget the battery on on and the next i go to use it the battery is drained... terrible.... does this gun need to be manually turned off or it will drain the battery as well or will turn off on its own..

We've tested this nailer and the on/off button only seems to use battery for the power LED, which does not have any appreciable effect on battery life. Leaving the nailer in the on position does not drain the battery enough to keep the nailer from operating the next day. We offer a 30-day satisfaction guarantee on this tool. You would be responsible for return shipping however.