Making plug-in batteries work together

I’m looking for a way to make plug-in batteries of different vendors work together and avoid that they start charging each other. In my case I already have a HomeWizard plug-in battery and want to extend it with zendure because of a lot lower cost per kWh.

A simple intergration like: telling the HomeWizard battery: only start charging if the zendure battery is already charging at full power and there is more than 1000W left during the last 10 minutes. Plus: From the moment the zendure stops charging also stop charging. Or another logic that makes sense.

Anyone knows there is something ready made for this?