Battery alchemy?

Just a note. Digital load testers are crap. Have tested “good” batteries with a carbon pile testers and found them to be junk. Same other way,batteries tested bad,that i recharged and used for years after.

One bad cell is one bad cell. It wont come back. Hope you are wearing protecive equipment while you are experimenting.if you have never experienced an exploding battery, keep screwing with it-you will.