Goal Zero Yeti 1250 Solar Generator For the mother of all power outages, the Goal Zero Yeti 1250 Solar Generator is essential when you have no clue when the power will return. The hefty 103-pound generator does take 40 to 80 hours to charge via the built-in solar panels (or 18 hours with a regular wall charger), but the point is that it can continue to recharge without electricity available. Recharging smartphones and small gadgets is a piece of cake. The Yeti 1250 is meant for larger devices, like a refrigerator and home health-care equipment. goalzero.com, $1,400 Follow @GadgetressThis article was written by an independent contributor, separate from TheStreet's regular news coverage.