The blue 2200mAh Slim Power Bank from Case Logic is a portable lithium-polymer battery that allows you to charge one device with its 5V USB port. With a capacity of 2200mAh, this power bank is compatible with virtually all devices that may be charged via USB.
Hey There, I also noticed that Case logic battery unit never seemed to turn off while charging. However after an overnight charging session, the unit's red light was off the next morning. The battery unit functioned normally without issue.