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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V – Voltage is equivalent to electrical pressure. That is, “how hard is the power source attempting to push electrons through the circuit”
A – Amps is the actual resulting flow of electrons. The more electrons moving through the circuit, the higher the amperage.
AH – Amp-Hours is a measure of amperage over time. So for example
`2 Amps x 1 hour = 2 Amp-Hours.`
`0.5 Amps x 5 hours = 2.5 Amp-Hours`
W – Watts is a measure of power at a given moment. Power is defined as Voltage (V) x Current (A). So for example:
`120v x 0.5A = 60 Watts`
`220V x 15A = 3300 Watts (or 3.3 Kilowatts)`
WH – Watt-Hours is a measure of power over time, similar to Amp-Hours.
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