Assistance requested - BEM / Battery voltages ...

[JulianHicks]

Originally Posted by Somerandomguy

Mine are 14.30v and 13.20v and is stating 50% state of charge

Thanks for checking your numbers 'SRG'.

Those numbers are even stranger than I think mine are

I know that the Battery Manager [BEM] is only 'requesting' 14.3V but I can't understand the voltage drop to 13.7V in my case [and 13.2V in yours]. Those numbers aren't really good enough to be charging the battery.

Interestingly, Ray's was over 14V.

The trouble is that although the BEM can directly measure the battery as it's 'right next door', it's not 'seeing' the Voltage level of the output from the alternator. So I guess some sort of test at the alternator is required.

Hopefully we'll see some other results from other cars ...

Julian