I've got a dewalt cordless at work... gets used on a daily basis. Batteries are two years old and they work great. I "had" another brand 1/2 drive at the house. Seldom used and the batteries went south for it in short order. Between that and coming home to a smell in the garage from a cooking Black and Decker drill battery on the charger all my stuff at home is corded.... and WORKS when I need it.