Tag: ryobi 40v battery

Why a 9V battery dies and how to fix it

A battery with a 9.5V rating is dead.If you have one, it is.If not, it’s probably dead.A battery with an active circuit, or a “battery” in the jargon, is dead when it stops working.It’s not dead when you can’t get it to work.You can plug it back in, but...