I've used my 18v DeWalt like JPS says. There are only a few times that it's worth dragging around. My Silky is lighter and quieter for more gneral usage.
The trigger has an interlock so it's unlikely that it would get started by a rogue twig.
I've use the DW when cabling to cut off through bolts and cable. This is a really nice use.
for branches less than 2" diameter a Silky handsaw is a better tool.
Tom