Sure and how about a nice commercial showing a multitude of them being used all over the world as shown on the worldwide tracking system map.

I have been working  in this arena for 60 years plus. Always as woodshoper, DIYer, wood and metal fabricater. In my opinion,cautiously offered, the current battery powered tools are the greatest advance to occur in all those years. With the advent of lithium batteries any of the disadvantages of said tools have all but evaporated. It is just a lot of fun working with them and not being tied to a cord. With me one of the great satisfactions of this avocation is working with a fine performing tools. Works for me.

I've used cordless for years and with the onset of cordless impact tools that stop on a dime I won't use corded on the job unless I absolutely need it. In the shop though everything except putting in screws is corded.

 

I use both... Some jobs just kills a battery. 

I do a lot of steel cutting with 6" cut off wheels.

That will kill a battery powered grinder real fast.

I just bought a 20v Dewalt chain saw but I have 

not tried it yet so I can't report on how good it is.

I have a friend that has GreenWorks battery powered

tools and he loves them... Not cheap. His chain saw takes 

two 80v batterys. He says it will run all day on a charge.

He's not a real fast worker so I imagine 1/2 day for me.