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VRM Portal and Temperature sensor on Quattro?


Ingo
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Does VRM Portal show the battery temperature value if the sensor is connected to the Quattro instead of the BMV? From the available widgets it seems it's doesn't unless I am missing something. Does it still use the sensor value for charging even though I also have a BMV-700 in the system?

Thanks,

Ingo

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33 minutes ago, Ingo said:

battery temperature value if the sensor is connected to the Quattro

No. The Multi does not make the temperature available at all (I often derive it by looking at how much the charge voltage is derated), it isn't even available on the CCGX.

You can however connect a temperature sensor (not the same as the one that comes with the Multi) to the BMV, and then use Shared Temperature Sense on the CCGX to share that temperature with the Multi. Then you get the best of both worlds.

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If you have a VenusGX, it has a batt temp sensor port, top right. Just need to buy the right cable i.e. Temp sense for QUA, MP , Venus.

Since I spent wot, R380 for the cable, I can see my batt temp on VRM portal.

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1 hour ago, Ingo said:

I noticed the supplied Quattro sensor is the same for the Venus so will just move it over.

The BMV has a different temperature sensor because it also has to carry positive power from the battery on the one wire (it replaces the normal positive cable going to the shunt). The temperature sensor that ships with the Multi/Quattro doesn't do that, it's just a sensor. I think it's also different on the inside re NTC vs PTC but I cannot remember.

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I moved the supplied Quattro sensor to the Venus but the portal still doesn't give any reading. I think the Portal widget uses ID 258 which is the BMV. Are there any tricks to enable the Venus Temperature readings? I did reboot the device.

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