Excellent for camping moments and having a reserve battery, but rechargeable with our sun.

must be in direct sunlight no shade. , light weight. sensitive screen. , useful. priced well

I like this article but I don't know if it works all the way

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1pc Waterproof Solar Charger - Compact, Portable USB Panel for Outdoor Adventures - Ideal for Camping, Travel, Charging Phones, Mobile Power Banks, Flashlights, Fans