Not long ago I was on a job well out of town and with only a few resources available. Our job was to build a small room addition off of a garage. It was nice weather and we did some work the first day getting up all four walls and the roof joists. On the second day we managed to get in a few windows and a couple of doors and started on the decking before it was time to turn in. The third day we were getting worried about the possibility of rain it looked really terrible out there. We continued on and managed to complete the decking and started on the roofing, we wanted to keep in the dry. That night it rained and we lost our power, lightning struck a transformer . The next morning we were able to finish our job with my Ryobi 51/2 inch battery powered circular saw. I had two batteries fully charged when I left home and they lasted long enough to cut all the finish trim. We did not have to wait to finish our job thanks to Ryobi tools.