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Effective Power of a USB (5V) Portable Battery

Author: Greaps3Executions: 1242
TOP/Shared Formulas (Engineering)/Electrical & Circuits

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Most commercially available power banks list their capacity, but in most cases, this refers to the capacity of the built-in lithium-ion battery, and the effective power output is not specified. It is generally known that power banks experience losses due to their step-up circuits, resulting in an efficiency of approximately 70%.
On this page, you can calculate the effective power output based on the output voltage and the listed capacity.
Capacity
mAh
Output Voltage
V
Effective Output Power mAh

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