Quote:
Originally Posted by nazali
txs guy's that kinda jives with what I thought,
as said, I did a 100km round trip, the battery was actually showing 12.xx volts 12.50 I think
but was getting the "battery discharged or low while stopped, start engine"
txs for the confirmation
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Our BMWs have energy management, which does mean at higher battery SoC, the alternator only supports the electrical demands and doesn't actually charge the battery. It is only when at lower SoC, that the alternator charges the battery. There is always capacity/allowance for over-run charging.
So it depends... several factors involved including the health of the battery. The battery has to be very low, to run 'conventional' charging. But even then, when thresholds are met for the management stages, the charging backs off.