Switchflicker, The best way to explain this is that your main starting battery was probably up to a fuller state of charge, so it would read a higher voltage. The auxiliary battery, if in a low state of charge requires more amperage from the alternator to bring it up to full charge. Until it gets to that point, the voltage on it will show slightly lower. As it charges up, they will equalize. Also, charging a battery for say and hour does not mean it is fully charged. The longer a battery stays at a lower state of charge, the longer it will take to bring it up to full state of charge. It will require more amperage from the charging system to bring it to full charge. Don't assume that the auxiliary battery is fully charged after say even a four hour drive after being drawn down. Especially if it is left in a low state of charge for a while, that battery should be put on a charger.
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Today's Featured Article - It's Alright Where It Is! - by Anthony West. I have a tale of a different kind to tell. Whilst rooting in the hedge bottoms this week I had cause to visit Chapel lane Farm, the home of an eccentric gentleman by the name of Austin Kendall. I had heard rumours that an old Case Model C was languishing away in the back of one of the outbuildings there. So off I went in search of what would turn out to be a very rare and unusual tractor. Mr Kendall is an excitable chap to say the least. He is amongst the last of a dying breed of farmer who
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