What is the best alternative to Anker 21W 2-Port USB Powerport Solar Charger?
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Inclusion of a battery has pushed the price up to surprisingly high levels, despite the panels producing less wattage than competitors. If the user doesn't plan on using the battery, or already has a high-quality external battery, this may not be the most effective option. See More
This package comes with an 8000 mAh external battery that can be fully charged by the panels in a reported 5 hours—impressively fast—and allows device batteries to be charged under less-than-ideal weather conditions or at night. See More
Unlike most portable solar panel chargers, this set has a built-in system that can charge a variety of laptop computers (albeit while the computers are in a low power mode) without the need for an additional power inverter. Be sure to check online for compatibility before purchase, though. See More