question

harold avatar image
harold asked

Sustain mode without solar connected

Hi Victron techs,
I have 'mobile solar panels', when connected these are linked to my MPPT.
But what will happen during sustain mode, when the panels are not connected to the MPPT?

sustain 3.10
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2 Answers
pwfarnell avatar image
pwfarnell answered ·

Read the Victron Manual

https://www.victronenergy.com/live/ve.bus:solar-and-wind-priority

It stays in this mode, called Sustain, for seven days; and if by that time there has not been enough solar or wind, it will run a full charge cycle, charging the batteries to 100%. This will make sure they stay in an optimal condition as well as be ready for a next use.

Much more info in the link which will explain how it works.

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Justin Cook avatar image
Justin Cook answered ·

If solar panels are not connected to the MPPT, then the MPPT will not charge the batteries, and -if not disconnected from the battery bank- will consume power at the rate defined in the technical specifications section of the MPPT's manual and also datasheet - you didn't mention which one you have, so I can't point you to the particular datasheet for it, but all datasheets and manuals are available by selecting your MPPT from this list: https://www.victronenergy.com/solar-charge-controllers

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harold avatar image harold commented ·
Thnaks, But I am referring to the new Sustain mode of de GX 3.10 version / Quattro.

Which will prefer wind / solar charging

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Justin Cook avatar image Justin Cook ♦♦ harold commented ·
Ah, my mistake - without any specification of which components or systems you were referring to, I was trying to answer while completely in the dark.
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