Battery Overheating / Thermal Failure
Anker power banks are documented to suffer lithium-ion cell overheating that can cause swelling, melting, smoke, or fire. Multiple PowerCore and newer power-bank models have been recalled for this failure mode, including A1263, A1366, A1647, A1652, A1681, and A1689. :contentReference[oaicite:0]{index=0}