Re: Do you know the secret?
If there was some miracle way to bring a dead battery back to life, it wouldn’t be buried in some place on Ebay. It’s just like those chips that claim they increase HP on your car.
While the majority of my projects are generally light duty projects around the house, I have been very happy with my Ryobi cordless tools. I have two batteries and two chargers. The batteries charge fast. One of the batteries is at least 8 years old and still going strong.