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11th October 2019, 09:02 PM
#9191
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jay see (11th October 2019)
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11th October 2019 09:02 PM
# ADS
Circuit advertisement
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11th October 2019, 09:12 PM
#9192
Patrol God
Originally Posted by
jay see
How does one check the alternator?
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I just run the car with a multimeter set on dc 20-30 volts across the battery terminals. After a few minutes from starting the voltage volts should settle. On my old clunker the optimum voltage is around 14.3. (don't know what your models optimum voltage is but I assume it should be around that) Turn on your headlights, wipers, aircon on demist and radio on. The voltage should stay around that or drop only slightly.
Last edited by mudnut; 11th October 2019 at 09:15 PM.
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Avo (11th October 2019), jay see (11th October 2019)
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11th October 2019, 09:47 PM
#9193
Legendary
Originally Posted by
mudnut
I just run the car with a multimeter set on dc 20-30 volts across the battery terminals. After a few minutes from starting the voltage volts should settle. On my old clunker the optimum voltage is around 14.3. (don't know what your models optimum voltage is but I assume it should be around that) Turn on your headlights, wipers, aircon on demist and radio on. The voltage should stay around that or drop only slightly.
Cheers mudnut.
If I jump it and then run a mulitmeter over it that will work yeah?
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12/97 GEE YOU
4.5lt Gas blower. Lots of mods to come.....all in good time.
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11th October 2019, 11:03 PM
#9194
Patrol God
Originally Posted by
jay see
Cheers mudnut.
If I jump it and then run a mulitmeter over it that will work yeah?
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It would be better with a good battery. It depends on whether your stuffed battery is generally just had it, or dropped a cell. Have you checked the water levels or is it a maintenance free unit?
Last edited by mudnut; 11th October 2019 at 11:22 PM.
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11th October 2019, 11:48 PM
#9195
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jay see (12th October 2019), mudnut (12th October 2019)
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12th October 2019, 01:14 AM
#9196
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BTW: Don’t let the little D27 - 66AmpHours label worry yourselves! It is a genuinely true found number unlike many 100+AH wank labels that take a solid weeks recharging and lost within in a few easy hours etc... :-)
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12th October 2019, 02:44 PM
#9197
Legendary
Cheers gentleman.
With all lights and A/C on.
Seeing that the battery is almost 3 years old, I'm getting a new one tomorrow. Then I'll run the same test.
Reading up little bit tells me that other symptoms are dimming flickering lights, engine light, electrical issues and dead battery. Only got the dead battery.
https://youtu.be/0DQ9JQpCvHU
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12/97 GEE YOU
4.5lt Gas blower. Lots of mods to come.....all in good time.
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12th October 2019, 04:22 PM
#9198
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That looked like your multimeter quickly spiked to 17.69v at one stage there John mate?
I was under the belief that 14.8v was a safe max?
Might need an electrical member here to help out properly mate!
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jay see (12th October 2019)
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12th October 2019, 05:09 PM
#9199
Patrol God
Were the probes held firmly for the whole time? That was a a big spike. Check that wires and connectors on the alt are all tight and in good nick. A higher voltage will cook a battery.
Last edited by mudnut; 13th October 2019 at 10:09 PM.
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12th October 2019, 05:55 PM
#9200
Legendary
OK.
I had my old aux battery (marine continuous use high cycle) on charge, terminals are on opposite sides but still be able to get it in security. Car fired up first shot did the same test with all lights on and AC. lowest reading was 13.2 with AC fan kicked in others wise 13.6 That was all done on idle. Took it you up to 1500 and the 13.2 jumped to 14 just meant to be.
This battery hasn't had much use, but I think it has dropped a cell. I'll give it a run over the next week or so and see how it goes.
Battery that I took out is showing 12.6v. With the indicator saying battery OK. I know that these things aren't accurate, but what has gone wrong with this battery. There was no warning signs..
Thanks guys really appreciate it.
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Last edited by jay see; 12th October 2019 at 06:22 PM.
12/97 GEE YOU
4.5lt Gas blower. Lots of mods to come.....all in good time.
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