Hello! This is the chart of my night load. Its not much. Home network and cameras, few lights and fans, and the fridge. Its setup to use grid during the night and use battery when grid is out, I go into the night with a full battery and go back to battery at 4am, but all through the night the battery drops to 99% and goes back to 100%. Always using around 20w and im justing wondering why it's always using battery if grid is available. Is this usage normal? Will it hurt the battery? Why does it so it
![Screenshot_2024-07-13-10-24-21-128_com.nfcx.eg4.jpg Screenshot_2024-07-13-10-24-21-128_com.nfcx.eg4.jpg](https://diysolarforum.com/data/attachments/228/228474-05d291f01ead925837bb93481c9f7d48.jpg)
![Screenshot_2024-07-13-10-24-21-128_com.nfcx.eg4.jpg Screenshot_2024-07-13-10-24-21-128_com.nfcx.eg4.jpg](https://diysolarforum.com/data/attachments/228/228474-05d291f01ead925837bb93481c9f7d48.jpg)