Rechargeable Battery Identification

Anyone that could help me to identify the rechargeable battery that goes in a neck fan would be greatly appreciated. The neck fan doesnt have any info besides “ABS” “3 W” “5V”. Its charged via 2 Micro USB Ports (One on each fan)

The battery is wrapped in purple plastic and flat on both ends. It has no writing on it at all. Its 2 1/2" long, 11/16" diameter

The battery looks like a standard 18650 cell. 1568-1488-ND should work fine for a replacement.