Lead-Alum motorcycle battery powering a 12v fan

This shows my Lead – Alum motorcycle battery powering a 12 volt fan. This lead acid battery was a throw away that I rescued and converted to a Lead – Alum battery. After several days of charging and discharging the battery charged up to about 11 volts. It then became usable again to run certain things. A 12v fan is one of them.

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