SOSOFLY Outdoor portable charger with LED light, 20000mah large capacity outdoor camping, long battery life, digital display mobile power bank, mobile phone charging treasure

Product specification：  Real capacity: 20000mAh Battery type: A grade li-polymer battery Input: 5V 2A Output: 5V 2.1A Case material: ABS+woven pattern Product size: 148*68*41 mm Net weight: 520g Gross weight: 570g Color: black,white   Precautions for battery maintenance:1. In the case of frequent use of the charger, try to control the battery volume to start charging within 20% to extend the battery life.2. If you don't use it frequently, you must fully charge it once a month and use it once a month, so that the battery life can be prolonged if it is fully charged and discharged every month.