Scenario:
Caravan, where Solar should be mainly used to load the Battery. 230V should be connected to the caravan for some dedicated use cases (coffee machine).
But when i connect 230V, the IPP22 is connected as well and start to charge the battery. So i want to switch if off via bluetooth like i can do with MPPT.
Any idea how to realize this?
Just have seen, that there is a feature request already
If you are using a preset for regular charge operation, then you can use the custom preset to kind of shutdown the charger, by setting the voltages down to 12.8V for both absorption and float. This custom preset will then stay as a selectable option in the battery settings, so you can relatively quickly switch between “Normal” and “Custom” preset for example.
I have a Sonoff switch on mine means I can turn it off remotely as the WiFi is always on.
There are similar BT switches like this: Aurora Bluetooth Inline On/Off Relay 12.5A - Screwfix
Which would do the job.
thanks, need 20A, but was considering DEWIN Tuya WiFi Smart Circuit Breaker with Timer Function and Remote Control for Smart Home 40A AC 230V : Amazon.de: DIY & Tools
just for my understanding, 12.8v does not charge the battery as it needs more than 14
The 12.8V was just an example, since in the demo product thats the lowest you can set. On a real product you may be able to set 12.0V or 10.0V as the lowest setting.
But in general, as long as the battery voltage is above the voltage setting of the charger, there will be no charge. So if your battery sits at 13.2V at idle, and the charger is set to 12.8V for its “Off” mode, then there weill be no charge current flowing. Only if you switch on a load and bring the battery voltage under 12.8V there will be a charge current coming from the charger.
It works a bit like the Solar and Wind priority
Switching the 230v of a 12v 20amp charger will only be a couple of amps.
In general it works. But I need to disconnect the charger from the victron Bluetooth network because it went to Absorption and the the solar charger also moved to absorption instead of charging. But that’s manageable.