Ampere-hours (Ah) and watt-hours (Wh) are both ways to measure battery capacity, but they represent different aspects. Ah measures the charge capacity, indicating how much current a battery can deliver over time, while Wh measures the energy capacity, indicating how much total energy the battery can store. The key difference lies in voltage: Ah is useful for comparing batteries with the same voltage, but Wh is more accurate when comparing batteries with different voltages.
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