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I was gifted a Smart Solar 100/30 controller. The guy who gave it to me said it is set up for a 24v system with Lithium batteries. How do I set it to a 12v system with AGM batteries? I assume the controller needs to be connected to the batteries to do this. Will this cause any issues to the controller or is there another way to re-set it/
Just connect it to the battery, open the VictronConnect app, set the battery voltage to 12V and change the charging settings as needed.
You maybe get a "under voltage error" but you can ignore this.
