battery stuff has come a long way since the basic battery drill?its all evolved as needed and prices are great these days,i can remember as an apprentice a battery drill that had fly leads and clips to hook to 12v car battery!then battery drills per say but only one way,then reversible,then hammer and torque,now impacts and battery ratchets,ive only just bought a battery ratchet because i have the ryobi drill and uses the same battery,wont use the air ones anymore,so much noise and drag a hose around?