Victron SmartSolar MPPT 100/50 shows around 30v solar volts when no solar panels are connected

So with no solar connected, my bluetooth app shows significant solar voltage (but no amps) when completely disconnected from solar, but still connected to batteries.

Why?

Thanks.

There can be some internal leakage back from the battery to the Solar. If it still works as an MPPT unit, then not to worry.

Thx.Works great.