OK, I'll explain. Electricity is not free. Neither is mixed fuel that runs most chainsaws in the USA and most small engine equipment. But, if you add up the cost required to run a small engine on electricity during its lifetime, you will likely pay more than the gas engine equivalent. The batteries coupled with the cost of the electricity to charge them will cost you more than the mixed fuel.
Also, the power and run time of the battery-powered saw will never match the internal combustion engine. I can cut a full pickup truckload of firewood on one tank of mixed fuel, fill it in five minutes, cut another, fill it in five minutes, cut another, etc. The saw will outlast my strength. You cannot do that with any battery-powered electric saw and you will never be able to do it in your lifetime.
As I suspected you are attempting to derail the topic at hand with an ill informed rant about electric vs gas which is probably based on your fear of change and the future. Simply put, electric motors have 100% torque available at 1 RPM, no gas motor can match that. Just because no manufacturer has yet to build an electric saw to match a gas saw doesn't mean it can't or won't happen. EV's such as the Tesla are already able to beat most production gas cars on the road today, and they've only been building cars in volume for about 5 years now. The Tesla Model S is a 4500 lb luxury sedan that can beat most sports cars and muscle cars 0-60.
Electricity is far cheaper than gas and can be generated from many different sources, including solar panels on your own roof.
Electric saws don't surround you in a cloud of 2 stroke exhaust. I hate having to use my gas saw and hate the way I smell after using it. No way is that stuff good for my lungs.
Electric saws are much quieter, you don't have to use ear protection.
Battery powered saws can be quickly "fueled" by swapping in a fresh battery. Technology exists to have an hour long battery charge and an hour long recharge time, which means two batteries would allow you to keep cutting until you drop.
If you want to include the cost of a new battery pack then you better include the downtime and maintenance for a gas saw such as a carb rebuild, exhaust cleaning, and probable motor rebuild. Electric motors have one moving part and should last longer than a gas motor. There is a reason industrial processes which require 24/7 operation use electric motors.
Almost everyone uses battery powered cordless drills and other cordless tools. All those tools have gotten more powerful over time, no reason not to expect the same thing to happen with chain saws.
Unless you're near death's door you can expect to see electric saws rival gas saws in your lifetime, just as electric cars are already beating gas cars.
