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Jon Elson[_3_]

wrote:

After this long winded description I want
to know how long should I keep charging the battery at the 1 amp
level in order to remove as much sulfation as possible.
I'm not sure long-term charging removes sulfation. Possibly cyclical
charge-discharge cycles does. If you could crank for 60 seconds and the
battery was still showing 12.57 V, I think you are done (other than
recharging it from that test.)

Jon