Aukey Direct via Amazon is offering its 21W Dual USB Solar Charger for $55.99, but if you checkout with the code AUSOLAR3 the price will drop to $40.31 shipped. That’s over $15 off the regular price and the lowest we’ve seen for it at Amazon.
This charger has solar conversion efficiency of up to 23.5% and it can automatically detect your devices to provide the fastest charging speed. The foldable design makes for easy transport and is great for outdoor activities. Rated 4.6/5 stars by 55 Amazon shoppers.
Aukey also has the more powerful 28W Dual USB Solar Charger for $48 (Reg. $60) when you use the code AUSOLAR4 at checkout.
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Deals still alive from yesterday:
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Make full use of the clean and unlimited solar power around us. Simply unfold the AUKEY solar charging panel under the sun, connect your devices and watch the battery level start raising.
From the moment it is placed under sunlight, the Sunpower solar panels convert more photons into energy than other similar products,which makes AUKEY 21W Solar Charger only need 3 panels while others may need 4 or 5 panels. Up to 23.5% of solar energy gets transfer into electric current to charge your devices.
Charging two devices simultaneously with dual USB port,the AUKEY 21W Solar Charger has maximum current output of 2A per USB port or total of 4A. Your devices will be back to full battery in no time.
There are two stands at the back of the charger to help the solar panel stays perpendicular to the sunlight, and hence increase charging efficiency.
Although not to be used in raining days due to lack of sun, the solar charger is waterproof (not including the USB output ports) and rugged enough to withstand most weather and environment conditions in the wild. They can be easily fold up and carried to your next destination.
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