Solar Charger, Solar Power Bank 20000mAh with LED Portable Rugged Shockproof Dual USB Power Charger Backup External Battery Power Pack Constructed with a Solar Panel for iPhone, iPod, Samsung Solar energy technology, environmental friendly High Capacity: equipped with a compact solar panel, it could recharge under sunlight for emergency purpose while outdoor. Super rainproof, shock-resistant and dust proof, Lightweight, compact and reliable. This design ensures the device functions smoothly when it's raining; ensures the device working properly even it crashes or drops. Dual USB Port: 2A USB port for iPad/Tablets, 1A USB ports for cellphones or other electronic devices; very easy to use, press the button to charge and double click to stop charging. LED status of charge indicators indicate the charging and discharging process.Easily hang it on your bagpack with the INCLUDED HOOK, hands-free on the go. Perfect for hiking, climbing and other outdoor activity. Please do not place solar charger Giant+ on over-heated place for continuous charging. Solar charger Pro is with built-in Polymer battery, one of the safest battery in the world, Compatible with high are not possible to explode even over-heated, but it might swell up.