Both of these solar panels are the highest-rated solar chargers in their price range on Amazon.
Brad's Deals Editor Michael,
The Aukey Universal 28W Solar Charger drops from $64.99 to $51.99 when you apply the code AUKEYPP5 in your cart at Aukey Direct via Amazon. You can also drop the price of the smaller 21W model from $54.99 to $41.79 by applying the code AUKEYP25. These chargers are only sold through Aukey's Amazon store. However, the 28W model is $9 less than the lowest price they've ever been discounted to and the 21W is $7 less than it's lowest historical price. These solar chargers have dual USB ports with a minimum 2.4A output under direct sunlight. They do not include a portable battery, but they can charge devices directly. Shipping is free. Sales tax is charged in most states.