You know the drill: You’re under way and need to make an urgent call, but at this time of dire need the battery is dead. Powertraveller provides the solution. The Solarmonkey Adventurer is a compact Solar-Charger with a built-in battery, perfectly suited to charge your mobile devices. The Capacity of the battery is 2500 mAh, which is more than enough to fully charge your Smartphone. When the sun is shining, the phone can be charged directly via the solar panel. Thanks to the rubberized, weather proof casing, this Solar-Charger is perfect for use in military- and law-enforcement services.