WH, AH , V
I would like to understand how to read those numbers and see how many times a power bank charger can recharge my phone or laptop.
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Watt-Hours, Amp-Hours, and Voltage
Voltage is a measure of electricity. The more volts, the higher the power, which relates to the amps and watts.
Your average regular phone charger will be about 5V, while a fast charger can be 50V or more. For comparison, a AA battery is rated at 1.5V
Amps are a measure of the amount of electricity used.
To make an analogy with water, voltage is the speed of water going through the pipe, amps are the amount of water flowing through it.
More volts correlates to more anps. Amp-Hours is a measure of how much power your device gives or takes in a period of time.
Watts is the combination of voltage and amperage. You multiply the two to get the wattage. This would be the equivalent of measuring the pressure of the water in the pipe. Increase the speed of the water or the amount of water, and you increase the force of the water.
Many light bulbs are measured in Watts, and overall power consumption is measured in Watt-hours or Kilowatt-houra.
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