What is this switch beside my Solis inverter?

Hi ghost, did you get external charger connected yet?

I got hold of a Huawei R4850G2 rectifier, have the CAN comms working, just waiting on a few bits to integrate it in to HA.

Haven't connected it to the system yet as not sure what settings to use, output voltage and output current?

I'm assuming as the Seplos (which is the only battery I have connected at the moment) has voltage charge request of 57.60V and the WECO BMS seem to max out at 58V as long as I use a voltage less than the lowest with say 57V @ 50A output I should be ok?

Just not sure what way to run it BMS wise, WECO, Seplos or none?

Would be wary that if say the WECO is full way before the Seplos that the inverter and charger are still chucking out 50amps each that the WECO BMS will fry, or will it just disconnect itself completely?

Thanks ghost