Marstree Solar Charger, 20000mAh Waterproof Solar Power Bank Dual USB Battery Pack Portable Phone Charger with LED Flashlight for USB Devices

Specification: Solar power: Single crystal 1.5W Battery type: Li-polymer battery Capacity: 20000MAH Input: DC 5V/1.0A Output: DC 5V/1A DC 5V/2.1A Housing material: Plastic + Silicone Packaging list: 1 x Solar Power Bank 1 x USB cable 1 x Hanger with compass Kindly Noted: 1. For safety, DO NOT charge the power bank in car or put it on dash due to high temperature in car. 2. Please do not take solar as primary charge source. Solar is mainly for topping off the unit, the charging speed will be subject to sunlight intensity and panel conversion rate, which may take long time. In daily life, we highly recommend charge it from electricity source. 3. Charging by outlet only needs approximately 10 hours. Do not charge it overnight nor over voltage. 4. In order to fully activate the solar panel, please charge it via outlet or computer at least 10 hours at first time use. 5. Please do not make charge while charging itself.