The Switch 8 Battery Pack from GoalZero is a pocket-sized solution for small electronics when you're off the grid or have lost power. At only 5 inches long and weighing 3.2 oz, the Switch can charge devices like MP3 players and cell phones or give larger electronics such as tablets a power boost to hold you over.
On one end of the Switch is a USB plug to charge it directly from most USB ports or compatible GoalZero solar panels. The other end has a USB port to plug electronics into using their charging cord. An LED battery level indicator shows available power in 25% increments. The Switch 8 is ideal for travelling, hiking, biking and short-term power outages or anywhere you need instant power.