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Malin Ah-King - Stockholm University

2005-12-31 · Actually there is a difference. ma = milliamps is a measure of the current flowing through a given circuit. mAh = millamps per Hour is a measure of the current delivery capacity of a battery. Whenever you see only ma on a battery is a mistype. The correct notation is mAh. Firstly, the mAh rating can depend on the actual current draw - in general, the more current you draw, the less capacity the battery has, but there are exceptions at both ends of this guideline (if you draw too slowly, self discharge affects your measurement, and if you drive quickly enough, the battery gets warmer, and if it doesn't break, it tends to perform better).

So 1Ah = 1000mAh. Since mobile phone batteries have low capacity, most of the time less than 1Ah for the early mobile phones. Higher mAh ratings do not necessarily reflect on speed but more on runtime. For example a 2000 mAh pack will sustain a 2000 milli amp (2 amp) draw for one hour before dropping to a voltage level that is considered discharged. A 1700 will sustain a 1700 mAh (1.7 amp) draw for one hour. 1000 mAh is equal to a 1 Amp Hour (AH) rating. mAh stands for milliampere-hour.

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A tool that draws 0.75A from a 1.5Ah pack will have two hours of runtime, and one with a 3.0A draw will last for half an hour. The more amp-hours A current flow for one hour measured in amperes (amps). Abbreviated "Ah" and commonly called "amp-hour," it is widely used to rate how long it takes for a battery to discharge. For smaller Ah means Ampere Hours.

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Ah is a related term of ha. Ha is a related term of ah.

Ha is a related term of ah.
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And difference between Ah and mAh is similar to difference between metre and millimetre. Because Ah means Ampere-hour & mAh means milli Ampere-hour. So 1Ah = 1000mAh.

AAA size batteries: 950 - 1100 mAh. Devices which require high capacity batteries include remote control cars, digital cameras and some electronic toys. mAH is the product of current and Time. i.e mAH = mA * H. A battery rated at 12V, 3000mAH indicates that, The battery can supply 12 volts at 100mA for 30 Hours (100mA*30H = 3000mAH) or.
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What is the difference between ah and mah

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Malin Ah-King - Stockholm University

300mA is the current consumed by the device when it is operating. 600mAh (milliAmpere-hour) is the battery rating needed for the other device. The device that will operate longest will be the one that uses a battery with the highest mAh rating.

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Before explaining the terms mAh, Ah, Wh, of the battery, we should know the following. How to convert electric charge of milliamp-hour (mAh) to amp-hour (Ah).