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Assuming you are talking about the Mi Power Bank 3, it has a capacity of 30000mAh which means that it can theoretically last for about 10 hours (if you are using it at a rate of 3A). However, in reality, the actual battery life will depend on a number of factors such as the discharge rate, the ambient temperature, and whether or not you are using fast charging. Generally speaking, though, you can expect the Mi Power Bank 3 to last for several hours before needing to be recharged.
Assuming you are using the Mi Power Bank 3 at a rate of 3A, it should take about 10 hours to fully charge. However, in reality, the actual charge time will depend on a number of factors such as the charge rate, the ambient temperature, and whether or not you are using fast charging. Generally speaking, though, you can expect the Mi Power Bank 3 to take several hours to fully charge.
No, the Mi Power Bank 3 is not designed to charge laptops. It is only designed to charge devices that use a USB charging port.
The Mi Power Bank 3 has two USB ports, so it can theoretically charge two devices at once. However, in reality, the actual number of devices that can be charged at once will depend on a number of factors such as the discharge rate, the ambient temperature, and whether or not you are using fast charging. Generally speaking, though, you can expect the Mi Power Bank 3 to charge two devices at a time without any issues.
The Mi Power Bank 3 has a capacity of 30000mAh, which means that it can theoretically charge an iPhone up to 10 times. However, in reality, the actual number of times that it can charge an iPhone will depend on a number of factors such as the discharge rate, the ambient temperature, and whether or not you are using fast charging. Generally speaking, though, you can expect the Mi Power Bank 3 to charge an iPhone several times before needing to be recharged.