The Fuel Cell Charger from Medis Technologies is mentioned as the first portable fuel cell charger in the world. As a fuel charger, this device utilizes “liquid borohydride technology” to get the power. If you want to charge you phone or anything else, just push the top to turning on. The fuel charger able to offers energy up to 30 hours of talk time or 60-80 hours of play time. But sadly the fuel charger itself is not rechargeable.