If you find yourself in the middle of an emergency, you need a solar charger that can help you out. The Instapark Mercury 10 is perfect because you can fold it before you bring it around your travels. It is smaller than a notebook, and it isn't that heavy to carry since it only weighs less than a pound. You can also charge two devices at the same time as this solar phone charger. At night, you can use its 3,000 mAh extra battery to charge your phones which is good if you want the best solar charger with battery for backup use. It even works well even if you are under the rain, which is why if you want the best solar charger for emergencies, this is one of our bets. But, if you are looking for a lightweight solar phone charger for your travels, you may want to skip this one out.
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