Old automotive battery charger question
I have an approx. 40 year old 12/6 volt automotive battery charger. When set for 12 volts and not connected to a battery, it reads 12.81 volts. Set to 6 volts and not connected to a battery, it reads ...
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Kinda off topic but I used to do business with Voltmaster Battery(now Deca) in Corydon Ia. and these guys told me that,at least twice a year,charge the **** out of a deep cycle for 12-15 hrs on manual.Claimed the battery will last twice as long.From my experience,I would say they are correct.Supposed to knock sulfates off the plates.
