If the battery is getting less and less when charging with a 65-watt flash charger, it may be because of the following reasons:
1. The charger or charging cable is faulty, resulting in unstable current or failure to transmit power normally.
2. Battery aging, reduced capacity, can not store enough electricity.
3. The phone's software or Settings are faulty, causing the battery to drain too fast. It is recommended to replace chargers and charging cables, check battery health, and optimize phone Settings to reduce battery consumption.
65-watt charging is fast charging, when the battery is nearly full, the protection inside the charger will limit the charging current, so the charge is slower and slower.