I have a solar panel on a caravan with a voltage controller as per picture. The controller can support two connected leisure batteries, so one supplies the onboard battery and one is spare. My question is can I simply take the positive and negative feeds from the controller and connect to the solar input on the Eb55 to charge it? Or do I need something in-between
In case the pic doesn’t upload, the controller is a PV logic MPPT pro controller.
Hi @PDgooner
welcome to the bluetti community forum!
The EB55 has its own builtin MPPT. You can connect the Solarpanels via xt60 to the EB55.
The only thing you need to have a eye on is the open circuit Voltage of your panels. Dont exceed 28V!
When you mean to connect plus and minus from your existing MPPT to your EB55, that could be a problem. The MPPT cant mesure the Battery Voltage of the EB55 and dont know how much it can charge, to my knowledge.
Maybe someone in the community actually done this before?!
greetings
Erik
Useful info, thanks. Does that mean I need to somehow connect the EB55 to the panel directly and not involve the MPPT in the caravan?
You can try to measure with a multimeter, if you have any voltage on the XT60 Port. But the safest way (when your panels are within the specs), is to connect them directly
again, thanks for the advice. Is it ok to tap into the cables so that the EB55 and the caravan MPPT box are effectively in parallel?
You mean to split the minus and the plus cable and then connect it to your Charge controller and the MPPT of the Bluetti?
Im not a electrian to be fair, but i want to setup a similiar thing and people told me to not do it or only have “one active line”
Maybe someone with more electric knowledge can help better
