Battery / Alternator voltage

[Johngreen537]

Might be absolutely nothing. Might be something.

My battery shows at an absolute max of 13.0V but normally around 12.8/9v while the engine is running. I'd have expected it to be a bit higher.

Does anyone have an idea what is the norm for the Tegs?

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[Rom]

Pretty much any car, should be around 14v when charging.
I'd take readings at battery, and at back of alternator. See what the difference is, if a lot, then look at wiring, corrosion etc.
If the same, it's more likely the rectifier pack on the alternator or something.

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