If you need the best portable charger then you should read Gadget Review’s expert portable charger reviews and comparisons before making a purchase. Portable chargers provide you with useful and innovative ways to charge your mobile devices on the go. Many are designed for international travel, where you don’t always have access to the right voltage and ports for safely charging your mobile device. Others are made to turn a normal wall outlet into multiple charging ports if you and your friends need a nearby source of power. Others make it easy to charge your phone in your car or in other areas. Some even work by solar or water power!