How long does it typically take to de-sulfate the average G-35 GA type battery?
Generally speaking the more plates present (such as when doing more than one battery at a time), the longer it takes to de-sulfate or even maintain a battery. Typically it takes at least 2 weeks to de-sulfate a otherwise functional or working G-35 aviation or lawn mower size battery and up to a month or more for larger batteries. When doing more than one large battery at once, it can easily take a month or more but remember, it doesn’t have to occur all at once. You can use the battery (or vehicle) in-between periods of de-sulfating treatments.
