Turn a dead non-spillable sealed lead acid battery in to a good semi-spillable lead acid battery by simple methods. No Epsom Salt or Alum Rock is used in thi...

I actually have two large 220Ah batteries that I got cheaply that I am trying to repair. Not sure if they are totally broken, but the seal poped open when trying to charge them again after a while and I am a bit hesitant what to do about them. Would be a shame to just bring them to a recycle center though if they can be repaired somehow.