The UltraPro mini rapid charger plugs directly into your wall outlet and charges your digital camera battery in approximately 60-90 minutes. Its unique flat pin, foldable design allows easy storage and makes it the most compact battery charger on the market. Features include: Foldable flat pin for easy storage; Slim, lightweight design; Smart charging LED indicator; Automatically turns to trickle charge after fully charged; Auto switching power voltage from 110V-240V AC; Constant voltage and current charging; Output short circuit and electronic shock protection; Can connect with home/car adapter; Includes universal 110-240V AC power source, European plug, and a car adapter; For use with the NIKON EN-EL3, EN-EL3e, EN-EL3a digital camera batteries.