Misun Ultra-slim Portable Solar Power Bank External Battery Energy Charger 20000mAh with Dual USB Port for iPhone 6S 6 Plus, iPad, Samsung Galaxy and More (Silver) Built-in 20000mAh polymer lithium battery, Ultra-large capacity ! Where there is sun, there is electricity! Charge via a powerful monocrystalline solar panel, or charge just like other usual battery. Misun portable solar power bank assures you more convenience and comfortability. 93% conversion rate, lasting and quick charging, essential choice for travel and camping. Ultra-slim and novel design, suitable for the vast majority of people; Built in LED flashlight ,4 integrated LED indicators to show power status. Built-in multiple intelligent security protections to avoid over-current, over-voltage, over-load and short circuit; Dual USB port charging, you can charge 2 device at the same time. Strong compatibility, compatible with 99% mobile digital device, such as Apple Watch, Tablet, iPad, iPod, iPhone 6 Plus 6 5S 5C 5 4S, Samsung Galaxy S6 Edge S5 S4 S3 Note 5 4 3, LG G4 G3, Nexus, HTC, Gopro Camera, GPS etc