I suppose one option is to get one of your own and try it out on a few trail projects so people see how it works. Personally only one of our two gas chainsaws run. I'm told that's all you'll ever have running at one time regardless of how many you own.

Assuming the battery ones have enough power it sounds like the limited time on a battery would be more than enough for the kind of use you need.
I need an excuse to get a battery powered one but I mostly use my plug-in electric one. No mixing gas, dealing with a gummed-up carb, or running it dry to store. But I also figure the longer I can wait to buy one the better battery ones will be.