The ampere, often shortened to “amp”, is the base unit of electric current in the International System of Units.
An ampere hour or amp hour is a unit of electric charge or current flow over time.
Formula to calculate amps hours.
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Example:
Suppose a battery provides 200 Amps for 3 hours. Calculate the electric charge in amp hours.
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Thus, the battery’s electric charge was 600 amps hour.