The solpro helios smart is a solar powered smart charger. You can use it just like you would any other USB battery Bank. Charge the internal 5,000mAh battery and keep your mobile devices powered while you're on the go. You can also use the patent-pending Tri-fold solar panel array to charge the internal battery. With three high-efficiency solar panels, maximum power point Tracking, and our smart charge algorithm helios can collect enough solar energy in 90 minutes to charge a standard smartphone.
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