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The best portable solar battery charger

Buy Big Blue Solar battery charger on Amazon  ₹ 11,599.00
Unlike the finite energy stored in a battery pack, a USB solar charger offers a tiny power plant that can generate power for your phone and small electronics to keep them charged when the sun is out—you can even use one to recharge a power bank and save that energy for later. After spending more than 60 hours testing 12 models, we're confident that the BigBlue 28W USB Solar Charger is the best portable solar charger for people who need to charge their gadgets and stay connected in an emergency or when they're off the grid.

The BigBlue 28W USB Solar Charger produces the most power of any portable solar charger we've tested, and it has unique features that make it more versatile and durable, including three output ports (versus two on most other chargers), a weatherproof port protector, and an expansive but lightweight array of panels to catch every last ray of sunlight. Although other models come close to matching it in terms of power, the BigBlue is also smaller and lighter than other options with similar output, so it can more easily fit into a camping backpack, hiking daypack, or emergency kit.

Who this is for

USB solar chargers are a great option if you're taking an extended camping trip or if you're traveling somewhere with an unreliable power grid. They're also good for stashing in an emergency kit. In all those specific situations, a solar charger could charge a phone the size of an iPhone X using a few hours of the midday sun. But in most situations, a USB solar charger isn't actually the best portable power source, and you may be better off starting with a USB power bank designed for phones and tablets, USB-C laptops, or AC-powered laptops. Our power bank picks to keep a smartphone charged for hours or even days at a time, are the size of a paperback novel or smaller, and are not dependent on the weather.

But whether you choose a solar charger or a battery, it'll work only with USB or USB-C devices, which limits these options' appeal for anyone who needs power for a long-term, off-grid setup. If you're going to be mostly stationary and need to charge or run larger devices like laptops or televisions, or if you need to use more sophisticated communications equipment, you'll probably be more interested in the larger setups that we cover in our guide to the best portable power stations.

Buy Big Blue Solar battery charger on Amazon  ₹ 11,599.00  

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