Victron Connect showing low amps on Smart charge controller

DIY
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1

I have a Blue Smart 150/70 connected to 120V 65A PV. I have the correct input and outputs to and from the Blue Smart, but Victron Connect is not showing the same amps and thus giving inaccurate Watts reading. I did all the upgrades and used a different phone but same issue. I powered it down and same results. I changed my PV input to half the voltage but same issue with amps. It is charging the battery with correct V and A per multimeter but not showing correct A and Watts in Victron Connect.

Any advice to correct or does it need to be returned? I failed to take pictures and am not near install site. Let me know.

Thank you,

RuralEnergy

2

If it is not reading it’s terminal voltage correctly, then the unit is faulty.
It is returned for a warranty assesment.

3

…I do hope the “65A PV” is a typo? Maximum input ISC of the 150/70 is 50A: https://www.victronenergy.com/upload/documents/Datasheet-SmartSolar-charge-controller-MPPT-150-60-&-150-70-EN.pdf

4

Thank you Justin. This is the first time I have seen this. The MPPT calculator said “Accepted” when I ran my numbers on this job and recomended the 150/70. My low temp Amps say 51.8A in the calculator but I am running more like 60A into the controller on my multimeter. I have always given myself room on the V but did not know a 70A could not take over 50A. Why is it labeled as a 70A charge controller and the calculator recomending the 150/70?

5

70A is the maximum output current, not the input current. Victron charge controllers are “max input voltage / max output current”, so a 150/70 can accept maximum 150v input, and can output a maximum of 70A.

As to why the MPPT Calculator might have said your array was okay, I can’t say.