How many of you keep corded tools in reserve on case of batteries dead or heavy duty service. Some examples: a milwaukee super sawzall 6527 comes out when my v18/18 ni cad milwaukee hatchet can't cut it. Which isn't often but it does come out. A makita 2.3 amp 6952 impact driver when my makita 6932 14.4 is burning through batteries. And a 9072 milwaukee impact wrench when my v18/18 ni cad milwaukee 0883 can't cut the mustard. Which happens sometimes on lug nuts despite it's 2200 inch lb(180lb ft) torque rating. Sometimes under heavy load the v18 cut out and I have to use a ni cad 18 volt battery. And if that doesn't work;out comes the cord and the 9072.