I use the Ryobi for camping. we go to a lot of state & city owned parks, and they want you to burn downed wood from the property but don't allow gas chain saws. one 4ah batt will cut up enough firewood for one night campfire easy.
I found these in Amazon.
[Linked Image from live.staticflickr.com]

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.