Cordless impact driver recommendation?

I got a Hitachi 18V several years ago from.....Home Depot, I THINK. Was either there or Lowes, I cannot remember.

Anyway, BOTH batteries took a crud a little over a year after I bought it. Lithium ion, so they ain't cheap. I did a search and discovered the service center for Hitachi is in Georgia so I called them. Girl said to box them up and send them in. I did. Cannot beat service like that.

About two weeks later, I received two brand new batteries free of charge. This has been about three years ago and it is still kickin butt.