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Don’t buy power bank before you read this 1) What’s power bank? Power bank serve as an ‘extra battery’ or external charger for your phone or other electronic devices. 2) Where is power bank made from? Majority of the power banks in the market are actually made in China. 3) How do I charge the power bank? You can charge your power bank via the charger that came with your phone, computer usb port or using other power bank 4) How long do I need to charge the power bank? It’s depending on the REAL CAPACITY of the power bank. The larger REAL CAPACITY, the longer charging time may required. Different charging methods may result different charging time as well. Charging with the original charger will be faster than charging with computer usb port. 5) Why sometime I need longer time to charge the same power bank? Even though using the same charging method, the charging time may be differ due to environment,temperature, power flow and etc 6) What is mAh? mAh mean milli A