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HardCharger



Member Since: 03 Mar 2013
Location: Manila
Posts: 784
Philippines 2011 Defender 110 Puma 2.4 SW Stornoway Grey
Here it is, Merlin.



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Post #652556 25th Sep 2017 7:20am
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1784
United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
You will see variance in voltage as load changes, this is normal. I wouldn't be surprised if the puma engines have one of the smarter alternator systems where the ECU will regulate the output of the alternator depending on the load.

You'll also see a slightly false voltage at the cigarette lighter. The more load on the wiring loom there is, the greater the voltage drop at a given point.

I have a pair of batteries and a voltmeter. It is wired pretty much direct to the aux battery, and the main battery feed is taken from the back of the radio.

When warm and running I see around 13.9 on the main and 14.1 on the aux. Both are charged fine. The aux is an AGM type
Post #652559 25th Sep 2017 8:16am
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HardCharger



Member Since: 03 Mar 2013
Location: Manila
Posts: 784
Philippines 2011 Defender 110 Puma 2.4 SW Stornoway Grey
So I guess that means that I should get a dedicated voltmeter routed to the battery then. Anyone know someone who sells voltmeters in green LED rather than blue or red? Or maybe a needle gauge to match the panel gauges?
Post #654283 2nd Oct 2017 7:58am
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1784
United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Just have a search on eBay for green led voltmeter, plenty there! I have a few of the cheapy panel ones and not had any issues with accuracy.

If you'd prefer a guage then vdo gauges look pretty close to stock, you'll obviously need to figure out somewhere to mount one!
Post #654285 2nd Oct 2017 8:13am
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