Keeping your cell phone and other portable electronics fully juiced can be problematic if you’re nowhere near a power source. For that reason the new Brunton Revolt 9000 power supply can literally be a lifesaver. This shockproof and waterproof all-weather energy source has a built-in lithium-polymer battery (good for charging the equivalent of six smartphones), which you can recharge through an AC adaptor. Restore also includes a three-in-one-adaptor cable for linking with USB, Lightning and 30-pin devices. If the Revolt ever breaks, Brunton claims it will fix it or replace it for free. Pick one up for $100 from


Hold your charge