I had two light duty, but very handly, cordless drill sets go useless when the batteries went bad. Not wanting to mess around with lower end stuff anymore I bought myself a nice Dewalt cordless drill with two batteries and a charger that will do either 12v or 18v batteries. Very excellent drill. But the batteries quickly died on me. Even with a full charge I'm lucky to get two or three screws set or holes drilled. I really don't know what the answer is. Talked to Tod about this. He won't use them. He uses air power which means hauling a compressor and miles of extension cord and hoses around. Not what I would call handy but professionally reliable once set up on a big job.
"Folks is funny critters."
Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire