An Amp-hour is a unit of measurement used to quantify energy storage expressed in amps. Specifically it refers to the number of amps that can be provided over one hour before the source is depleted or empty. This measurement does not take voltage into account.

Example: 40 Amp-hours worth of capacity means that a 40 Amp load can be applied to the battery pack for 1 hour before the battery is completely empty.

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