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There should be a diagram showing how it must be installed. I believe that you have the same plant as I do (SPH3600 with a 6kWh lithium battery) and either a Chint or Eastrom smart meter. The smart meter must be mounted directly after the meter from the electricity company. With the Chint the...

I wrote in #8 that SOC should be set to 100%. That is not optimal as it gives the battery a very sluggish response to sudden large power demands. I have set SOC to 20%, and now the battery deliver almost immediately.

It’s your smartmeter that controls discharging of the battery. If the smartmeter is mounted up side down then the battery won’t discharge. Or it maybe something with the time settings if ac charging is disabled.

Try to chance the inverter to battery first and set a short time span for ac charging (fx 02:00 to 02:15). In that time span the battery will not discharge. Set ac charging to disable if you dont want to charge from the grid.

SOC should be set to 100%.

You may be in Grid First mode.? But I can’t get my system to AC-charge the battery from the grid during the night anymore.