Now there is a fair amount of selling portable solar recharges, but a new project Sunjack, which was presented at kickstarter, looks interesting points. First, the gadget has a decent area of solar panels, which promises good efficiency. Second, panel mounted on a soft base that saves weight and comfortably accommodate construction on a backpack during the journey on foot. Thirdly, there is a decent built-in battery capacity for energy storage. SunJack will be available in two versions. They differ in size and battery. Modification is equipped with a smaller lithium-polymer 8000 mAh and older – just two. To connect consumers use two USB ports and a set of adapters. Charging of the battery can and from the network. Once assembled, the unit takes up little space and does not require additional cover. In the retail price of $ 150 and $ 250 for the small and large models, respectively. Advance booking is cheaper.