SunJack® helps mobile users stay charged on the go anywhere the sun shines. The SunJack® is able to fully charge its internal battery pack in about five hours of direct sunlight, or directly power any USB device. When the sun isn’t shining, users can still energize their devices from the powerful SunJack® battery, which holds enough charge to power up to four iPhones. Portable power is valued by campers, boaters, travelers, survivalists, hunters, rock climbers, and working professionals. The SunJack® is a critical item in any emergency or disaster preparedness kit. There is growing demand to be untethered from a wall socket and to become energy independent. The SunJack® is compatible with most mobile phones, iPad/tablets, USB lights, digital cameras, MP3 players, and portable gaming devices. The SunJack® is shipped from California, USA and is supported with a one-year limited warranty.