@Jason McNeil I proceeded as per your instructions. I checked, disconnected and reconnected battery connectors. No change at all.
Also, as per this picture the battery has its 2 blue leds which indicates most likely that the battery is not faulty and that
Finally, as indicated, I am able to power on the unit, even though it will not charge and the data from the battery is inconsistent.
This sound more like an issue with the controller board.
I will use the return label you sent me (thanks for that) and ship it back to you today as I have the time to go to a Fedex store.
Emmanuel