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Features: Battery type: Li-polymer battery Solar power: Single crystal 1.5W Application type: commonly used material: ABS+PC+ Silicone Capacity: 20000mAh Input: DC 5V/1.0A Output: DC 5V/1A DC 5V/2.1A charging time: 12h Specification: Product Dimensions: 5.5*2.9*0.8in Package Size: 7.76*4.72*1.38in Product Weight: 320g Package weight: 350g Package included: 1* Solar Power Bank 1*Hanger 1* USB Charging Cable 1* Manual Kind note: 1.In order to fully activate the battery, please charge it via outlet or computer for 6hours at least at the first 2-3 uses. 2.Fully charging by outlet takes approximately 10 hours. Do not charge it all day nor over voltage. 3. For safety, DO NOT leave the power bank charging in car in case of high temperature and avoid crashing. Do not make charge while charging itself. 4. The energy transformation from solar to electricity is rather slow and the solar charging speed is subject to sunlight intensity and panel conversion rate. In daily life, we highly recommend charge it via wall outlet.