Load increase from Battery

[francesluo]

Hi everyone,
I’m new on this forum.
I had recently installed a system made by 1 H1-6.0-E-G2 inverter with 14 PV Panels and 8.29kW battery (ECS4300).
My house is actually empty, I have a constant standby load of only 20W but recentl I saw that everyday, at sunset, when the PV has no power and the battery is engaged, the load increase around at 65W:

Is it related to the inverter using the battery energy?
Every load I add (a dehumidifier for example) during night, it is like is using more energy.
For example the dehumidifier during daylight use around 100W, so I see a total of 120W with the standby load.
If I turn the dehumidifier on during night (from battery), the load goes from 65W to 210W.
At sunset, after the battery is fully charged, the load goes down again to 20W:

If it can help I add some more technical details:

INVERTER
Master Version: 1.09
Slave Version: 1.09
ARM Version: 1.09

BMS Version: 1.014

Thankyou in advance.

[Will]

You'll want your grid compensation setting adjusted to around -25 by your installer remotely.
You will first need to be on the latest firmware which your installer can send over the internet to your inverter.

Details here: