milliampèreuren

Milliampèreuren, also written milliampère-uren, is the Dutch unit of electric charge used to express the amount of charge a battery or capacitor can deliver. It is the Dutch equivalent of milliampere-hours (mAh) in English and is defined as the product of current in milliamperes and time in hours.

One milliampère-uur equals 0.001 ampere multiplied by 1 hour, which is 0.001 A × 3600 s = 3.6 coulombs. In practice, battery capacity is quoted in milliampèreuren/mAh to indicate how much charge can be drawn from a cell under a specified discharge condition.

In consumer electronics, capacity ratings describe how long a device can run between charges. A higher milliampèreuren value generally means more stored charge and longer runtime, but actual endurance depends on discharge rate and device efficiency. For example, a 3000 mAh battery does not necessarily deliver three times the life of a 1000 mAh battery in every situation.

Energy content is obtained by multiplying capacity by the nominal voltage: energy (in mWh) = capacity (mAh) × voltage (V). Thus a 2000 mAh cell at 3.7 V stores about 7400 mWh (7.4 Wh).

Discharge rate affects effective capacity due to chemical and internal resistance factors. At higher currents, the practical capacity decreases, a phenomenon described by Peukert’s law.

Milliampèreuren are mainly used in Dutch texts to denote battery capacity, aligning with the international concept of ampere-hours while reflecting local terminology.