Bi carb a dead battery

[Christine]

There's many claims and youtoobs about rejuvenating  dead batteries with bicarb , anyone tried it ? And do you refill it with acid afterwards or just run it with the bicarb?      Asking for a friend 

 

 

edit , ah see,  I just looked and it's epsom salts he was on about, not bicab !!

[DodgeRover]

Add EDTA and give battery a good shake (you can buy it off ebay), charge at a very low current