In a perfect world, we like to think we head into the woods and leave our electronics behind. But we know that isn’t our world. Technology allows us to keep in touch with our loved ones on extended trips into the backcountry, document our adventures, and even ensure we don’t get lost. Fortunately, recharging technology also understands those needs. Here are four powerbanks suited for the outdoors—whether you’re on the water or tucked away at base camp.

Keep your hands warm and phone alive. Amazon

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Charging your phone while warming your hands might sound like something from the future, but the technology is available now, and it’s also quite affordable. The dual-sided, lima-bean-shaped device heats up to 113 degrees Fahrenheit with adjustable high and low settings providing warmth for up to three hours. The USB charger works for cell phones, cameras and even tablets.

Don’t let rain slow you down. Amazon

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This battery pack can charge an iPhone X up to seven times or a Galaxy S8 up to six times and only takes six hours to completely recharge. But the best part may be that it’s waterproof, dustproof, and shockproof. If charging isn’t enough, it also has a flashlight with flash and SOS lighting modes, making this battery pack good for backwoods adventures and as a failsafe at home during natural disasters.

Never be left in the dark. Amazon

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As long as the sun is shining, you will have power. This water-resistant, durable, foldable charger is highly portable and compact, making it easy to hang in trees, on backpacks, or on tents. The USB smart technology helps the charger recognize your device and maximize charging speed while protecting your devices from overcharging. The PET panel and fabric canvas protects it from breaking or morphing in whatever sun or weather come your way.

Juice all your devices. Amazon

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Anything under 100W can charge on this portable generator including a mini cooler, laptop, mini fan, or drone. It has enough power to charge an iPhone X 10 times or run a 5W lantern for 20 hours. For less than 3 pounds, the lithium backup battery pack has three recharge methods including a wall socket, a solar panel kit or a car cigarette socket. It also has strobe and normal lights for emergencies and indicator lights to show residual battery capacity.