Voltage Reg or Alternator??

Submitted: Wednesday, Jan 30, 2008 at 21:14
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Running a 60 Series, twin batteries - 1 x crank and 1x fridge only (50 L Trailblaza)

Digital voltage readouts on both batteries - within 0.1V of multimeter on either battery comparo dig readout.

Digital sets off alarm at 15.5 (+/- 0.2 V)

Is Alternator problem or Voltage regulator - intermittent and call into lecky - no problem - bluudy Murphy.

Advice please.



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Reply By: Eric Experience - Wednesday, Jan 30, 2008 at 21:46

Wednesday, Jan 30, 2008 at 21:46
The problem is the regulator or the wire that supplies the reference voltage to it. Have you had a so-called smart regulator fitted? some of these interfere with the regulator. Eric
AnswerID: 284611

Reply By: Member - Doug T (FNQ) - Wednesday, Jan 30, 2008 at 22:01

Wednesday, Jan 30, 2008 at 22:01
Is it overcharging the batteries, ie is one of them getting over cooked, if it is the Alternator ...if it's like the 75 series wiring it should have a white wire coming from the plug at the rear of the alternator, closest to the engine block ,Cut it about 120mm back , fit a terminal and fix it to the main live terminal on top of the alternator, tape up the end from the firewall.

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AnswerID: 284619

Reply By: Chriscd - Thursday, Jan 31, 2008 at 12:27

Thursday, Jan 31, 2008 at 12:27
Thanks Guys,

Will check out both options - re cooking batteries - replaced cranking approx 2 months back following 3 years service, replaced aux appox 1 week back after 2+ years in tropics, had digital fitted approx 18 months back and has been intermittent increases in last 12 months or so.


AnswerID: 284699

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