If you buy a new replacement laptop battery recently, how to determine the length of battery life? At this time of the following can be relatively simple formula to do the calculation.
The capa(mAh: milliampere hours) multiplied by voltage (V: V), and then divided by 1000, could be kilowatt-hours (Watt-Hours) values.
Let's calculate: First of all, you start to read the current battery capacity and voltage of the mAh value, and then they are multiplied together and then divided by 1000, if your battery has been used for the current unit Ah, because it shows that They have been divided by the first of 1000. For example, if you use 10.8 volts and 4400mAh battery, the formula is: 10.8 x 4400 / 1000 = 47.52, or converted into 48 kilowatts / hour (W / h), the higher the value, the better. Battery capacity is usually high or low battery pack is the size of the figure, the more the battery cell, said a few more capacity.
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