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Sun Juice: A Way to Compare the Efficiency of Portable Solar Chargers

How much a portable solar charger weighs, its size, and its effectiveness are three important considerations when buying one of these devices. This is especially true for people looking for the best solar chargers for backpacking.

Backpackers and hikers don’t want to lug around a heavy or bulky solar charger. Yet, there currently exists no common unit of measurement that will help you compare the weight, size, and output of these products.