Bruntons revolutionary SOLO brings power to the weekend camper or long expedition adventurer way of the grid. Providing power where and whenever, the new Solo can operate a variety of electronics such as laptops, TV's, air-pumps, cell phones for hours with the potential for nearly unlimited power capacity. The unit is easily recharged when plugged into a household outlet, vehicle DC outlet or by using Brunton's solar panels. But the true genius of the SOLO could well be its lightweight. Because when you consider everything this Brunton invention can do for you, it just might be the smartest 4 pounds you'll ever own. Contact us for Customer Service, Technical and any other question at 1-800-443-4871 (or) support@brunton.com Technical Details - Durable/waterproof construction allows you to take this storage device anywhere to charge/run anything from an iPod to a small television - 12 Volt output charges many of your electronic devices, including laptops, satelite phones and many more. - Reverse flow protection prevents discharging the devise you are using - DC 120 Inverter included - Max Output: 14.6 Volts, Max Power: 77 Watts http://www.besttoolsforyou.com/Buy-Brunton_SOLO_15_Amp_Hr_Lithium_Polymer_Storage_Device-B0018BEQZ0.html