Anker Flare 2 Over Charge 100%

Anker Flare 2 full charger can’t auto cut off, led bass up on stay. Why? Claim or not?
firmware v01.40 id

Have you tried a different cable and/or check the port for dust or debris? Seen faulty cables (or more precisely the USB-C connector end) causing issues where it appears to keep pulling charge (which will be a small amount near the end of the charging cycle).