Solar charger power bank has a large battery capacity of 42800mAh, and uses high-density batteries to load a larger capacity without changing the volume and weight. The super battery life allows you to get rid of the anxiety and worries about the depletion of the device power anytime and anywhere. Portable charger is compatible with all USB devices such as smartphones and tablets. The battery pack charger portable has 2 USB output ports, if the device is compatible, the portable battery pack can support the QC3.0 fast charge protocol. Solar phone charger is equipped with a super bright LED flashlight with a long range, It can work continuously for up to 100 hours. Solar power bank portable charger uses strong professional ABS material, Chemical resistant, heat-resistant, and has super surface hardness, high elasticity and toughness. IP67 waterproof,drop-proof and dust-proof, so you no longer worry about damage caused by water/drop, the powerbank can work in extreme environments. Friendly reminder: When the solar panel is being cared for, it will generate current to charge the battery, and the indicator light will flash.Solar charging is affected by the instability of sunshine intensity and duration. The battery capacity of the portable charger power bank is very large, so the charging will be very slow and should be used as an emergency function. For daily charging, please use a charger with a power above 5V2A to charge the portable phone charger.