Saw on Struggleville.net, Home Depot deal, buy 2 4amp 18v rigid batteries, and charger for $139, and get your choice of bare tools. I got the angle grinder. I already have drill, impact, leaf blower, skill saw, 2-1.5, 3, and 4 amp batteries for the Rigid system; but one of the 1.5amp and the drill both need set back. The drill, high gear is messed up, and one of the 1.5 amp batteries doesn't charge anymore; but it did fine for probably 8 years. The Sawzall and skill saw are both going on 18 years old.
I've wanted a cordless angle grinder for a long time, not to replace my corded makita, but to supplement it.