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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I have a 10 amp manual-automatic 6-12V charger similar to Gdtrailer's.I don't know if you would call it "old school" but I bought it in approx 1980.General opinion is you can't leave them hooked up 24-7 like a smart charger.In the auto mode,I can leave mine hooked up as long as I want as the charging rate drops to zero when the battery is fully charged.It will also charge up a stone dead battery.
