Dark Parking - MPPT discharges battery --> fail-safe switch or relais?

DIY
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Victron Frage
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Hi all!

can I switch off the battery and solar side of the MPPT with one switch/relais?

I am looking for a fail-safe option to switch off the MPPT 100/20 because I park my camper under a roof and the battery is discharged by the MPPT.

I learned that I have to set the battery voltage to 12V manually to prevent the system to detect the wrong voltage. Any other considerations?

My panels are two flexible panels in series: Offgridtec® ETFE-AL 100W V2 semi-flexibles 23V Solarpanel

Many thanks and have a great day!

Arjen

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Yes if you use a double pole breaker like in your picture

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Dank je!
So, four poles in total you mean? Just the + poles is not sufficient? I think my panels are floating, no ground connections. I thought two poles would be sufficient?

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Yes only plus poles

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Thanks for following up! Have a good weekend! Peace!