Both of my chassis batteries would not take a full charge. On my Battery Charger I have a Reconditioning mode. Takes 24 hours per battery and it is suppose to send out negative and positive charges todissolve thelead sulfatefrom the internal plates which act as an insulator on the platesand will not let the battery take a fullcharge. So I did this recondition and it worked like the book said. They both took a full charge. My question is, has anyone else done this and will the charge last for awhile or should I just bite the bullet and buy two new batteries. If no one has then I will be the Gennie pig and let you all know if it really works.