Yeti 150 Solar Generator by Goal Zero is a portable, noise-free and a clean energy source for gadgets/machines that we normally use such as laptops, cameras and any USB based devices. You get the liberty to use 12V, AC or USB output slots and essentially these all are plug and play. The 150 watt solar generator itself contains a Lead-acid (AGM) battery that provides full charge after 4 hours of wall outlet, car charger or otherwise 5-10 hours of sun light (15W Boulder 15 Solar Panels included). For those who have a car, a number of devices and a long way to go to camping, we recommend this standalone power supply unit so you don’t run out of juice any time. Available soon.