The Pharlor FC-2 intelligent USB Charger is a compact charging solution from Pharlor. This device features 2-Bay battery charging slots with digital LED display which will tell you charging progress for each slot. The FC-2 Intelligent charger also functions as a power bank for on the go use with all of your favorite devices. Simply Charge your batteries, unplug the unit, then use the USB port to charge your cell phone or whatever device you choose. As long as your batteries are charged, you have a fully functioning power bank unit. This device is constructed of ABS fire retardant materials and features reverse polarity protection.