Partager l'article ! How to conversion battery units "mAh" and "Wh": Those who understand laptop better friend in choosing products will be more focu ...
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Those who understand laptop better friend in choosing products will be more focused on battery "mAh" unit size,
"MAh" is battery capacity of the unit.
In general, a lot of friends buy might think mAh unit big battery will have more long endurance.
But the fact is not so,
On a laptop battery can often see "6 cell 4400mAh", "4 cell 2200mAh" and so on numerical nominal, as time passes everybody thinks 4400mAh or 2200mAh capacity directly determine notebook working hours.
However really master battery capacity of a unit should be regarded as "Wh". Of course, the "Wh" and "mAh" is a close relationship between the following formula: Wh / V x 1000 = mAh. It should be pointed out that measuring appliance itself the consistence of units should be power, namely "watt".
Since then we can learn to choose laptop battery should be paid attention to place is not "mAh" but "Wh" and voltage number. For example, the same is a piece of 4800mAh lithium-ion battery in
10.8 V and 11.1 V at different voltages that reflects the negroponte ability is different, and this is different from its "Wh" different. Through calculation we can get the following
4800 / 1000 x 10.8 = 51.84 (Wh)
4800 / 1000 x 11.1 = 53.28 (Wh)
Can clearly see 4800mAh 11.1 V of lithium-ion battery in the battery life ability will more advantages.
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