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M35 Volt Gauge

jasevr4

By jasevr4,
in Four Door Family & Wagoneers

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jasevr4 Mentor

jasevr4

Posted
Posted

I've been interstate for the week, and the car has been sitting. Come home and it's flat - opened up the battery to see exposed plates, my bad! Topped it up yesterday and chucked it on the charger, Reckon it got about 6 hours last night and another hour or so this morning.

Went to start it - no go. Looked at the power guage, and it was showing just over 6 volts. Chucked the multimeter on the battery terminals and it was around 11.5v. How accurate is the power gauge in the car? Reckon the problem is actually the battery?

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pomnz Enthusiast

pomnz

Posted
Posted

I'm not sure how good the power gauge on the stagea is but I'd say your battery is farked, I found exposed plates in my wifes car (merc) and topped it up but ended up replacing the battery a few weeks later because it wouldn't hold a charge any more. I too saw a decent reading off the battery with a multimeter but as soon as I put any load on it by cranking the volts just fell away and it wouldn't start.

How old is the battery? Any swelling on the sides?

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Daleo Grand Master

Daleo

Posted
Posted

11.5 volts still isn't enough for a battery in good condition; I'd say she's rooted.

When mine started to get that low; it started throwing airbag faults and CEL faults. Replaced the battery, reset the faults; all was fine.

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bLaQ.bOi Mentor

bLaQ.bOi

Posted
Posted

Ok so, This similar thing happened to me

1st time I didnt drive my car for about 4 days. JUST sat there. went to start it. no dice... I just jumped to the conclusion stock battery was f**ked and got a new one.. started fine...

Then recently, I didnt drive it for about 4 days again... Didnt start. took a lil portable jumpstarter with me for 1 day and had to jump it everytime...

I thought it was weird because i got a multimeter on it and it was showing 12.9 volts.

Decided to loosen the terminals... remove them off... Push the brake to take out any excess charge in the car... and reconnect..

STARTED FINE!!!

must be like some gay as hell immobiliser? or something?

If you still have your old battery it would be good to see if you tried it, if it would work since its bee removed!

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