Brunton hybrid power pack car adapter, One fully charged torpedo charges 2x smart phone, 3x MP3 player, 2X head lamp, 2x GPS, 3x video camera and 3x UV water purifier. Engineered for adventure. Machined aluminum for extreme durability and rugged performance. Planet safe power high-yield lithium cells are rated to 1000 cycles keeping wasteful alkaline batteries in stores and out of landfills.