Quote:
Originally Posted by SteveSAS
14.7 is overcharging.
Is this with the original battery?
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It isn't the original battery, but a same size/capacity replacement installed in late 2016.
I agree that typical battery voltages with the engine running is 13.6 - 14.4.
However, in our case the FSM in CHG section, shows the regulated output voltage is 14.1 - 14.7 volts
and the adjustment range of the variable control is 11.4 - 15.6 V.
I don't know how accurate the reported voltage is as it is from my OBDLink scanner.
It could easily be off 0.1 - 0.3 volts depending on the accuracy of the analog to digital converter and the tolerance of the resistors in the voltage divider. (The chip can only measure 0-5 volts and uses a voltage divisor to drop the 12-14v to below 5 volts)
For me, I'm not going to worry about the charging voltage. It was interesting seeing/plotting exactly what it is doing over time.
Well, interesting to me
