My unit cannot be turned off unless I disconnect it from the battery. When I plug the battery in the motor starts. To stop it I have to remove the battery. There is a ”trigger” on the handle that does absolutely nothing. Looking at the advertisement I assumed this was to turn the device on and off. If I want to stop for a minute I have to remove the battery pack….which is not particularly easy. And the battery usually gets wet and has to be wiped off before I can plug it back in to continue.
Recommendation: Don’t buy it. It is easy to use as long as you never want turn it off