RAVPower 15W Solar Charger with Dual USB Port (Foldable, Portable, iSmart Technology). High conversion solar charging technology keeps your device powered up with free limitless solar power. iSmart technology ensure 100% compatibility and fastest charging speed for your Apple, Android, Tablets, and USB Powered Devices. Foldable design, easy to carry around, great for any outdoor trips/activities. Two ports with max 3 A total output to charge two devices simultaneously and save you time. Water-resistant and mould-resistant nylon to endure all weather conditions. IPhone 6S, save up to 40 minutes charging time. Nexus 5, save up to 40 minutes. Galaxy S5, save up to 45 minutes. Note 4, save up to 50 minutes. IPad mini 3, save up to 1 hour and 45 minutes.