question

redsam avatar image
redsam asked

Mppt 150/85 Not Charging

Hello world

I have 3 phase with 3000/48MPII, 400Ah 48v sonnenschein s12/230 Battery Battery Bank. BMV700 and Venus GX installed 4900W panels. everything is updated to the last firmware

The problem is that my mppt often stop or not start charging when the battery is near full around 85% and even when there is a big load its take from the battries then when the SOC really drop and the voltage is around 49 48v its start charging

and when looking to VRM Graphs is its in Bulk with 0W output

in the [normal] days it goes from Bulk to absorbtion but in float is stays for about 5 to 10 mn then back to bulk

i attached some screen shots of my VRM and its in Vrm world

Thank you

screenshot-20210530-155111-comandroidchrome.jpgscreenshot-20210530-155116-comandroidchrome.jpg

screenshot-20210530-153409-comandroidchrome.jpg


MPPT SmartSolarmppt charging
2 |3000

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3 Answers
netrange avatar image
netrange answered ·

What is your actual firmwareversion ... Maybe 485 ?

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redsam avatar image
redsam answered ·

venus OS V 2.66

MPII 48/3000. V 465

MPPT. V3.05


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redsam avatar image
redsam answered ·

screenshot-20210602-165436-comandroidchrome.jpghello

any help please

Even with a big load nothing from the mppt. the float was today for 5 mn



screenshot-20210602-144433-comandroidchrome.jpg

screenshot-20210602-125418-comandroidchrome.jpg


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