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Old 09-17-2011, 09:44 PM   #2 (permalink)
JethroBodine
MPG Militia HMV-25E80+A
 
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Location: Vermont, USA
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FrankenJetta D - '90 Volkswagen Jetta GL
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Yes your alternator is charging.

Yes that is about normal.

Yes you will have to disable the alternator by pulling the belt( if able to) or with a kill switch.

Your alternator is working less hard with a full charge to start with, so there is some benefit, and the deep cycle is more suited to this kind of use than a regular automotive starting battery.

You are moving along the same path that I am, but I have a few larger fish to fry before I get back to alternator work. I have the kill switch already working, but the old starting battery I have won't die.
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