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philv asked

Hi I have a mppt smart solar and a smart battery sense, so do I have to manually set the temperature compensation or will the mppt do this automatically if I set the values for my batteries at 25c?

MPPT ControllersTemperature Sensortemperature compensation
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klim8skeptic answered ·

Perhaps you could mention your battery make / type?

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philv answered ·

I have rolls AGM batteries in 24v

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klim8skeptic avatar image klim8skeptic ♦ commented ·

You are lucky, Rolls have a very good User Manual.

Page 25 gives Bulk/absorb and float voltages, as well as the temp compensation figure of 4mV / °C / Cell. -24mV for a 12v battery, -48mV for a 24v battery

You will have to change the temp compensation figure in the mppt, as Victron use the figure of -16mV.

Mppt manual, Follow the instructions.

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