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Updated February 2022
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
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We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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10
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Our phones and tablets can be literal lifesavers, and running out of juice for your phone in a hostile situation is the stuff of horror movies. Luckily, there are portable chargers that run on rechargeable lithium-ion batteries, that can revive your dying device. Even better, for outdoor hobbyists like campers and hikers as well as for marine application, they also come in waterproof form. The more rugged ones will also stand up to dust and dirt as well as knocks from rough treatment. The chargers come with USB ports and most will charge all smartphones, but check the manufacturer’s description. These chargers are inexpensive items that are a must in any emergency kit. Added bonus: Some will also have a flashlight capability.

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