Can be filled 4 times. When charging the mobile phone, the 3.7V voltage should be increased to 5V, this process will consume part of the electricity, plus when charging the mobile phone, the wire is also resistance, and the electricity that can be charged to the mobile phone is about 60% of the total capacity. The amount of electricity that the 200,000ma mobile power supply can actually charge to the mobile phone is about 12,000 MA, so it can be filled with the 3000ma mobile power supply 4 times.