How do you repair a ryobi 18 volt battery?
If you take it apart (look for little screws holding the battery case together), you’ll see that it’s just a bunch of little batteries, often spot-welded together (and the polarity can be reversed from what you’d expect). You can try replacing them with similar rechargables, but I haven’t had much luck with that. By the time the batteries are dying, the drill (or whatever) isn’t far behind. That may not always be the case, but it has been here. I just bought a Ridgid 18V cordless drill. Strong as hell, and guaranteed for life – including the batteries.
