No. If the deal battery has shorted out, sulfate from the plates has dropped to the bottom of the cell or sells shorting the battery.
I had a (very cheap) friend who used to try that . . . pour-out and filter the old acid, try to flush the plates, refill with filtered and new acid. He did everything but put under a pyramid during the full moon. At most, he "rejuvenated" them for a week or so . . . then they would short out.
BTW: "battery revitalizers" were once a common snake-oil: I understand they were made from epsom salt.
Hi no the problem is the battery has sulphides up it's lead plates. so due to use over a number of years the best cure is a new battery.
No
