Unfortunately, the 80T has a problem. After the end of charging, it should remain in the charged stage. However, it resets. That means it shuts down and opens again and is on standby. I thought the one I bought had an issue, but ultimately, the replacement I received does the same.

Generally, the charger charges. But it does this reset every minute or so if you have the clamps on the battery or if the charging is completed.