Bought the Stihl last year and have used it a lot. It will not run with gas for really big jobs, but the shorter the job, the better. As a test I cut a 60+' birch about 16" diameter. It limbed and cut the whole tree on 2 battery charges. A sharp chain and good oil ensures solid performance.
I have a bunch of different gas saws and they all lost playing time to the battery
