This is not the first track saw to run on batteries, but it may be the only one that can run on any combination of one, two or three batteries of the right configuration. The new cordless TSC 55 comes from a sought-after line of corded cousins, and shares the same blade, rails, and accessories. The frustrating part is U.S. users will have to wait to buy one. See it in action at JLC-Live in Providence last month.