Accessories Gadgets By Nick / 27th April 2014 Share Tweet Share RAV Power Knightrider Battery ChargerExternal Power for your USB Accessories and GadgetsPost updated January 2018: The RAV Power Knightrider holds an impressive 14000mAh and will charge a whole variety of gadgets and gizmos such as:check Smartphonescheck Tabletscheck Go Pro CamerasI have been using this external battery charger for some time now and whenever we leave the house for any extended period of time, I make sure that I have this with me.It is great for long journeys, camping trips, holidays and vacations, long work contracts and so on.Check out our full review here and decide whether you could do with a little (or a lot) of extra power: RAV Power Knightrider 14000mAh Battery Charger