Why Choose Our Solar Charger? Our sunpower solar charger has high efficiency conversion rate, so it can capture more sunlight than conventional solar panels, do not need much sunlight to charge items.
The transformation effeciency is up to 22%-25%, while most of the similar products on the market is 15% or even lower. It can automatically adjust the current and voltage to achieve maximum power. Best design and Simple Style. Compact size design for portability, with the free hook, you may just hang it on your bagpack when outdoors. DC port: charging 18V laptops and other 18V DC-powered devices.
USB port: smartphones, tablets, ipad, external battery packs, or any other 5V USB-charged gadgets. Capacity: 21W (Max) Working voltage: 5.5V/18V Output current: 1.17A/3.818A Solar conversion efficiency: >23% Dual Output: USB&DC5521. Compact Size: 23x 17x 2.5cm.Attention:please check the model, size, voltage and power of your laptop adapter to ensure compatibility before using. X 21W Foldable Solar Charger. X DC5521 public revolution wire. The item "21W 18V Foldable Portable Solar Panel Battery Charger 2 Port USB Power Bank Pack" is in sale since Monday, June 19, 2017. This item is in the category "Mobile Phones & Communication\Mobile Phone & PDA Accessories\Chargers & Docks". The seller is "2012kui" and is located in ShenZhen. This item can be shipped worldwide.