USB POWER CALCULATOR

USB output capacity

  • How to calculate theoretical USB output capacity

    A simple equation can be used to convert the 3.7V into 5V. ACTUAL 5V mAh = 3.7 X Advertised Capacity / 5 For a 10,000mAh powerbank – 3.7 X 10,000 / 5 = 7,400 mAh So a 3.7V 10,000 mAh powerbank really only supplies 7,400 mAh at the 5V USB connection. So straight out of the box is a 23% reduction i... View Post

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  • USB output capacity