Disabling Solar charger

[Ingwe]

Our lithium set up is as follows: 2 110Ah batteries, Victron B2B charger, Victron IP22 mains charger, Victron MPPT solar charger and Victron smart shunt. All’s working brilliantly. Question is this: currently in France where for the next few weeks, temperatures are going to be in the 30°s. So we are planning to stay in the house and not go any where till it’s cooler.
The van is parked up and is not on hook-up. The SOC is 100%. We have a Battery Master so the cab battery is kept topped up. Knowing that you’re not supposed to keep lithium batteries fully charged for a long time (not defined) I thought I’d turn off the Solar charger and let the alarm, tracker and other drains reduce the cab battery and absence the solar charge, the leisure batteries.

The Victron Connect app allows me from the solar settings to disable the solar charger. But when I did this, it came up with a message to the effect of this is for maintenance issues only. I’ve gone ahead anyway and I’ll remember to enable the solar charger before we set off, hopefully in a few weeks, when it’s cooler. Am I doing anything wrong by disabling the solar charger for this purpose?

 

[RowleyBirkinQC]

I’ve disabled solar charging via the Victron App for similar reasons, nothing bad happened. Well, not that I’m aware of anyway.

If you use a Battery Master to keep vehicle battery topped up, could be worth keeping an eye on that though?

 

[Two on Tour]

You could just set up a "user profile" with SOC values to represent a 90% charge and then switch back to your original profile when you are back in your van again.

 

[Tombola]

I disable it all the time like this for the same reasons as you. No problem.

but Ill also take note of Two on Tour excellent suggestion

 

[Ingwe]

You could just set up a "user profile" with SOC values to represent a 90% charge and then switch back to your original profile when you are back in your van again.

Thank you for this suggestion. Is setting up a user profile straight forward? I’ve got the Victron literature so will have a read.

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[Ingwe]

I’ve read pages 16,17&18 of the Victron manual. Will re-read and think about it. Nervous about stuffing up the settings.

 

[Two on Tour]

I'm just about to start cooking lunch so I will come back to you later, but basically, you will set the absorption voltage 13.3 volts and your float to 13.2 volts.

14.4 volt is normally considered to be 100% SOC and 13.3 volts to be 90% SOC

 

[Ingwe]

Enjoy your lunch and many thanks. 34° degrees here and too hot to into van at moment. I know I do it via App.

 

[the1andonly]

My method for controlling the charging of a lithium battery cost a bit to set up then just leave it do its job.
I use the BMV712 SOC settings to control a relay feeding the solar feed to a solar controller (well and a second to control feed from the controller as second feed goes to van battery.