I type much faster than I can write in longhand. For our extended power outage I wrote using my old Alphasmart Neo with a Mighty Bright booklight clipped on the side. I did not use my iPad because I did not know when or where I would be able to charge it. (I intend to get an power inverter for the car for the next power outage.) I also read books with the booklight, too.
My Alphasmart and my booklight were great to have when the lights went out. If I sat right in front of the fireplace, I was nice and cozy. :^)