15V to 14.8v AGm battery - Too high?

[Cuppa]

Agree with Winnie.
It’s the fact that something has changed which is of concern.

[AB]

For sure, I’m definitely not saying it’s ok.

I might even just take it to an auto elec to properly check out to be sure.


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[AB]

Like Dazz said my money is on regulator.

It happened in Toolangi when I first got the Gq and my battery looked like a balloon!


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[MB]

If ever Suspect on an integral part, replace with new and keep the Suspect as a spare….onboard in this Adventure scenario
Will also immediately diagnose itself once the new part is installed


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[MB]

FWIW: Been running Optima yellow tops D27 & 31’s for well over a decade. Not saying they can’t handle it but have never personally ever had a TD42’s alternator, Jaylec, Baxters, Quickazz ever go beyond 14.8v prior to sludge bastardisation or after.


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[AB]

Unfortunately it looks to be the regulator which was expected.

Very lucky in hindsight as ive been driving it to work recently to ensure its reliability before the big trip so thats bloody lucky it happened here!

[BrazilianY60]

Yep, always need some shakedown runs, even some small trips if possible.

[pollenface]

I did read though it could be a faulty Earth or Neg point. disconnect the battery and disconnect the earth off the Alternator and clean and reconnect and see if that fixes it.

Good point. The earth is probably the most overlooked asset of any vehicle.