I was reading this thread. Most of my cordless tools are Ryobi. As noted above, that is the complaint I have the batteries don't seem to last long. Meaning not while using the tool but from the time I bought the battery until the time it needs to be replaced.
I started marking the batteries with the date I purchased them. Since then not one has failed...LOL. I really like the 4 1/2" small circ saw from HF. But would hate to have 2 brands.