The way chargers are designed, a 12A charger does not put out 12A for x hours. If the battery is dead, it usually puts out a little more for a few minutes or so and then comes by the rated number and over time, as the battery voltage builds the current drops off.
So the only way you know your battery is charged is to look at the charging amps. At about 4 my Schumacher 10 a unit goes into the green area indicating full charge; or full enough.
On the alternator, last time I bought a replacement from Autozone, there was a note in the box that said if you don't charge your battery prior to installing this alternator you would void your warranty. Like you realized they are designed for sustaining, not deep cycle charging.
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Today's Featured Article - George's Fordson Major - by Anthony West (UK). This is a bit of a technical info to add on to the article about George's Major in the "A Towny Goes Plowing" article. George bought his Major from a an implement sale about 18 years ago for £200.00. There is no known history regarding its origins or what service it had done, but the following work was undertaken by Harold alone to bring it up to show standard. From the engine number, it was found that the major was produced late 19
... [Read Article]
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