Alright, I gotta say this brand stinks! They were recently purchased by Black and Decker which makes them slightly worse if that's possible. I used this exact set for about a month before the drill literally started smoking (I am assuming it was the varnish on the motor melting). Lowes was AMAZING and took the entire set back and gave me full credit (that I put towards a Hitachi LiPo setup).
But anyway, this is still an amazing price. If you currently have a Porter Cable setup and need a couple of extra batteries this would be well worth it.