Battery usage time for me makes most battery tools a no-go. Specially for leaf blowers which I have a (loud) one of the more powerful gas models. I was looking at a battery option one day in HD then I noticed the battery life at full speed was under 20 minutes! Huh?? at 20 minutes I'd need 800.00 worth of battery backups to keep rotating them out, no thanks. Why can't the manufacturers of current gas models quiet them down significantly? I don't have a clue but it really doesn't seem as though it should be rocket science.