Thanks guys. Let me drill down on these....firstly, is that fluctuation abnormal and a problem?
Quote:
Originally Posted by Bob Kontak
V-reg at first blush.
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Its an internally regulated alternator, so a pain to switch out. Hopefully something else but you could be right.I have a spare car I can switch it in but hoping not to have to do that.
Quote:
Originally Posted by 3rd_gear_Ted
Optimal battery max float voltage is 13.8 with max charge voltage being 14.2.
The cycling between 12.4 and 13.8 is about the same range as a voltage regulator diode duty cycle.
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WHen you say in the same range as a voltage regulator diode duty cycle, do you mean under normal conditions? THis is where I was going with my original question about whether the charging system is working as normal, its just that the little lipo battery doesnt smooth out the voltage fluctuations as well as a traditional big lead-acid battery?
~13.5v is what I saw in my logs in the car before rebuild. My Adaptronic log showed a solid 13.4-13.5 when running.
Quote:
Originally Posted by Jim Smolka
Start with the basics...
Check grounds., clean and tighten
If still having issues, have alternator voltage check with another O'Scope to see if the issue really is with the alternator - regulator.
Also, if its the battery, swap with another battery.
Just my $0.015 worth...
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Unfortunately I dont have an oscilliscope. Swapping a battery is going to be a pain. I really buried the battery down deep in the smuggler's hatch with the master cut-off on a short lead next to it. I may have to try and jumper the battery leads to a big battery sitting in the front.
