My system is installed in a Camper: 4 solarpanels, each 140Wp, one SmartSolar MPPT 150|35 , two SmartLithium 12v|200A batteries, one BMV 712 smart, one Blue Smart IP22 30A charger. One D+-relay connects/disconnects the motor-battery from the Lithium-batteries.
When the engine is running or by using the 220V-Charger, everything works fine: the batteries will be charged.
But as soon as the solarpanels should do the job (the sun is shining) I get something like this:
These are the settings.
The "charge"-led an the BMS 12V | 200A is off. Charging seems to be blocked:
I checked the shortcut of the green plug (remote for charging): OK, the red cable has 12V.
I checked the cables between the solarpanels - no findings. Connecting the panels to an outside-solar-controller showed normal working:
Connecting other, outside panels to the system: no charging:
Honestly I am running out of possible solutions. Any ideas will be apprechiated !!
Gerhard
