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marommel asked

values for battery charge/discharge power/energy and charger losses (MQTT)

good morning,
I try calculating the energy flow in my system myself. The system is a simple ESS with solar inverter, multiplus II, Cerbo GX, EM24 gridmeter and pylontech batteries. For receiving the values of the system I'm using MQTT.
No problems are gird W / kWh in and out, solar W / kWh. But with the battery I'm struggling a bit. I can use the DC values (current and voltage or directly power):
1678778485394.pngThese values doesn't match the values in the vrm dashboard for "to the battery" and "from the battery".
I assume the difference are the charger looses. If I calculate my total energy usage with the DC values, these looses will be part of that total. Is there any possibility calculating the power/energy in and out of the charger?

Thanks a lot,
Markus


battery charging
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