A couple of days ago my canon T6 battery didn't charge all night, the light on the charger kept blinking orange. I put it in the camera to verify it didn't charge a bit. I tried unplugging it, replugging and waiting for 10 seconds, everything the man...
My new charger came in before my new battery, just tested it out and it’s charging the other batteries.(Using all Canon brand, no third party batteries or chargers).Hope this helps someone else going through the same issue