Lufei Solar Panel Charger 8000mah Rain-resistant and Dirt/shockproof Dual USB Port Portable Charger Backup External Battery Power Pack for Iphone 5s 5c 5 4s 4, Ipods(apple Adapters Not Included), Samsung Galaxy S5 S4, S3, S2, Note 3, Note 2, Most Kinds of Android Smart Phones ,Windows Phone and More Other Devices (black) Package includes: Levin&Trade; External Battery, hook, micro USB cable, instruction manual. Grade A cell, Build-in 8000mAh Lithium Polymer battery which chareges via a powerful 1.2W monocrystalline solar panel ; 2.1A output allows for simultaneous charging of your devices at high speed ;Anti-explosion, lightweight, compact and reliable, 1000+ recharge cycles over the life of the battery. Please do not place This on over-heated place for continuous charging. This is with built-in Polymer battery, one of the safest battery in the world, which are not possible to explode even over-heated, but it might swell up. Compact, portable &amp; stylish design; Easily fits into your bag to provide instant power; Football grain design has anti-skid protecting effect The LED flashlight works perfectly in darkness, especially for emergency. Just press the button twice, the LED will light up; 4 LED status of charge indicators indicate the charging and discharging process The first rain-resistant &shock-proof portable solar charger on the planet; Solar energy technology, environmental friendly and could recharge itself under sunshine for emergency purpose when outside; This can charge your iphone about 50% to 60% juice for emergency after being solar charged for 7 to 8hrs under normal sunlight, It's not easy for 1.2W input Solar panel to fully charge the buit-in battery with sunlight, thus, we suggest it for casual use,For long trip,hiking, Levin Sol-wing+Lufei would be a perfect choice. . Water resistant design ensures the device functions smoothly when it's raining; Shock-proof feature ensures the device working properly even it crashes or drops.