The battery saw is great for someone who uses it to clean up an occasional fallen limb and thats the extent of their use of it. Same for the string trimmer when one only has a small ditch to trim and a couple flower beds.
I cut 3-4 chords of wood a year and I target trees in the 20”+ range. I use a professional grade chainsaw that can drive up to a 25” bar (though I only use a 20) and I’ll run it for several hours almost constant stopping only for fluids in the saw and my body. I’ll likely never go to an electric saw. Ive had mine for about 6 years and it has never failed to start on the 3rd or 4th pull, because I use stabil and start all my small engines once a month.
I agree, in your case, you might never see a battery chainsaw as a replacement for your gas chainsaw. I don't think I have ever said that the battery chainsaws are to the point where someone making a living with them can switch from gas to electric.
I suspect that most people, like myself, maybe only use their chainsaw once or twice a year if a bad storm comes ripping though town and knocks down a tree or some branches. For a small 15-20 minute job, my electric chainsaw is perfect. Just slap in a charged battery and go.
There are many years that I never took my gas chainsaw out at all. So, when I finally needed it, most times it was a pain in the butt to get started. No fuel, dried out, and sometimes that carb would need cleaning. Typical problems with a gas engine that does not get used.
I use the canned Tru Fuel in my gas Stihl chainsaw now. It costs a lot of money compared to regular gas, but the treatment and stabilizing additives they put into the Tru Fuel keep the carb clean and my gas chainsaw now starts when I need to use it. Although it sits in the shed all winter, I make sure to start the gas chainsaw at least a couple times every summer whether or not I use it. Mostly I use the battery chainsaws for the small jobs. But if I ever need long run times for a big job, then I take out the gas chainsaw.
For an average homeowner like me, having an electric chainsaw that shares the same batteries as my grass trimmers, mini tiller, cultivator, power sweeper, powered snow shovel, and brush cutter attachments adds a lot of value. One battery (I now have three) to run them all.
FYI, Ryobi came out with a 40v 18-inch chainsaw. It looks like the same motor as on my 40v 14-inch chainsaw. I contacted Ryobi Tools and asked them if I could just replace my 14-inch bar and chain with an 18-inch combo. They told me I could. So, I have upgraded to an 18-inch bar and chain and will see how well it works this summer.
That's still a long way from your gas 25-inch bar and chain max, but I suspect lots of homeowners probably don't need anything more than a 14-inch bar and the 18-inch bar upgrade is now longer than my gas Stihl 16-inch chainsaw.
) I didn't NEED many tools because I was now an RN. Except I had a house to rebuild from the framing and subfloor up. (I promise it will move faster from here.)
) I see now I can get a charger for @$30 on 
