I received a dewalt 20V drill for Christmas with the 1.3ah batteries and have been very impressed wiuth it. I would like to get an impact wrench now. I'm torn between the DCF899B or the DCF880B. I would be using this for general auto work and use on diesels once I graduate. I know the 889 has more toque but Im worried it will drain my smaller batteries too quick. I do like the compact size of the 880 though. I have a very powerful MAC air impact. What do you guys think?
