I am not sure this battery is OK.
I saw those batteries, but I need only 2 connections that are in the same time for charging and for the Power PCB, it means, I have to change things on this batterie. Also, no garantie about the origine of batterie elements. Thisone from Fa akkuservice-dellinger sollt deutsches Qualität sein made in China but build in Germany.... Also 7Ah ggn 6Ah
Check that you have the correct INA3221.'m on building Bernards Wifi Station Sender.
I have connections between all 3 GND needed plots Bernard, thanks.Check that you have the correct INA3221.
Need to have common GND on the 3 channels.