A10000mAh power bank has a capacity to store 10,000 milliampere-hours of energy. This capacity determines how many times it can charge various devices before needing to be recharged itself. How Many Charges Can a 10000mAh Power Bank Provide? Agood quality charger or cable can charge your 10000mAh power bank in about 1 hour and 30 mins if the other factors also align. But a faulty or poor-quality cable or charger will take longer than 2 hours. Whenit comes to a 10000mAh power bank, it means that the power bank is capable of storing and delivering a total of 10000 milliampere-hours of power. This capacity is quite popular as it strikes a balance between size, weight, and charging capabilities. Thiscalculator is designed to show exactly how many times a power bank with a specific capacity (1000 mAh, 2000 mAh, 5000 mAh, etc) can charge your specific phone model. Enter the model of your phone and the capacity of a power bank in the forms shown in the figures. 9PaPK.