If your battery is not currently harmed irreparable (analysis much less than 10 volts on the voltmeter), Epsom salt will certainly restore it. Nevertheless, it's necessary to take all the required safety measures to prevent accidents. Sodium bicarbonate will certainly reduce the effects of the battery acid in either case, https://dallasilkif.theisblog.com/35259898/the-war-against-reconditioning-lead-acid-batteries-with-epsom-salt