question

conor-andturbos avatar image
conor-andturbos asked

Cerbo GX vs smartsolar mppt

hi, I've changed battery types from Pylontech 2000c units to powerplus lithium and now my smartsolar charger says its in external control mode, both solar and battery voltages show on the cerbo screen but it will not start charging, does anyone know the solution to make it start up again?

cerbo gxMPPT SmartSolarPylontechPowerPlus
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1 Answer
kevgermany avatar image
kevgermany answered ·

You may need a different Comms cable between the GX and the batteries.

But the battery supplier should give guidance.

Removing the Comms cable will disable external control. But then you must set up the MPPT correctly. And you'll need the smart shunt mentioned earlier.

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