Hi. I have a solar tracking project with a solar panel that puts out usb, and the battery I am using is a usb power bank. The intention is to have the solar panel charge the battery, and the battery powers the project.
The problem I am having is that when hooked up in configuration 2, the battery does charge (the charging light comes on on the battery bank), but the current readings are usually zero. When connected in configuration 1 (battery not being charged, solar panel usb output connected directly to INA219), the current readings will be in the neighborhood of 2000 milliamps.
Can anyone confirm that my second wiring configuration is correct?