When this occurs, you have to totally desulfate the battery so that it once again holds a charge. Desulfation is likewise called battery "reconditioning." Since batteries contain harmful chemicals, such as lead acid, you have to take security preventative measures. Always put on goggles and gloves when executing this procedure. https://howtorestoreacarbatterywi94679.newsbloger.com/35783231/h1-ez-battery-replacing-testimonial-can-you-re-use-old-batteries-h1