Charge your phone via sunlight or a power cable The 10,000 mah solar power bank has two charging modes. In standard mode , the power bank is charged through its micro-usb port or 10w usb-c. You can check the charging status in this mode via the blue led. Thanks to solar panel placed in the upper part, however, this device can also charge via solar mode: using sunlight will produce enough energy to charge the battery of a smartphone up to 50%* . You will know if the power bank is in this mode when the led turns green. Charge up to 2 devices simultaneously Its two 10w usb ports let you charge up to two devices at the same time, such as a smartphone and a tablet , or a pair of tws earbuds and a smartwatch. Intelligent charge technology for fast and safe charging The usb ports use intelligent charge technology: your samsung, apple, xiaomi, huawei, oppo and other branded devices will not only be recharged quickly , but also in a super safe way. The right energy level will always