With all these storms in the news, I thought it would be a good time to mention basement flooding. Most insurance won’t cover the contents of a basement shop. If you lose electricity in a storm, you could be in a fix. The sell backup battery pumps but I wouldn’t trust them. If the power goes out for days, the battery won’t last long enough. Also, batteries go bad.
I recommend a water driven backup sump pump. If you lose electricity but still have water service, you are still good. I have one from Liberty pumps. I’ve never used it for real but I test it twice a year and it seems fine.