question

benc987 avatar image
benc987 asked

MPPT issues

Hello,

I’m receiving volts but zero watts. Iv checked all the wires and fuses etc but nothing.


What is confusing is that I have a log of charge during the day but now nothing. I could be wrong but I think what it has gone to float charge.


Any thoughts would be brilliant.


Also panels are wired in series and had no issues in the last 18 months.


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MPPT Controllerssmart solar charging behaviour
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2 Answers
secessus avatar image
secessus answered ·

Screencap says Float. Battery voltage is > configured Float voltage so no power is needed from panels.

Working as designed, unless I have missed something in the question.

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Alexandra avatar image
Alexandra answered ·

@Benc987

Your battery is at 14.02v (float voltage is set to 13.5v). The mppt is in float state, so i expect it is waiting for the battery voltage to bleed down to that.

You will start to see wattage again after the rebulk offset has been triggered, which is usually, with lithium, 0.1 or 0.2v under float.

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Related Resources

MPPT Product Page

MPPT Error codes

MPPT 150/60 up to 250/70 Manual

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