HOW TO CHOOSE LAPTOP BATTERY- realize from Parameter to Cell.

jeff 2009-07-05 1,393 views

HOW TO CHOOSE LAPTOP BATTERY- realize from Parameter to Cell.

What is the biggest difference between laptop pc and desktop pc,
I think it is “mobile ”.

This“ mobile ”computer depend on wireless network and laptop battery.

Therefore it is very important that how to choose laptop battery.

As a consumer, the simplest and directviewing method of choose laptop battery is see the quantity of cell.
Mainstream laptops standard on 8 cell , 6 cell or 4cell lithium ion battery.the 4 cell battery usual be used in slimmest laptop.

The more the quantity of the cell, the more long it is Battery life.

laptop battery 6 cell

laptop battery 6 cell

when choose laptop battery, some person pay more attention to the “mAh”. mAh is a unit of cell capacity.  We can see the sign on Laptop battery says “6 cell 4400mAh” or “4 cell 2200mAh”, making it easy to believe that the Battery life depending on the cell capacity, but this is not the case.
Now we need realize another parameter : watt hour.(Wh)
relation between Wh with mAh.
Wh÷V×1000=mAh

10.8V 5200MAH 56WH 6CELL battery

10.8V 5200MAH 56WH 6CELL battery

The important parameters of bettery are Voltage, watt-hour, mAh.

for example: the battery life is diffenrent  when an 4800mAh lithium-ion batteries work at different voltage(10.8V, 11.1V)
This difference stem from the change of watt hour.
4800÷1000×10.8=51.84(Wh)

4800÷1000×11.1=53.28(Wh)
4800mAh lithium-ion battery work at 11.1V  have more advantages than work at 10.8v.

original article,If reprint please Show source: Sourceslaptop parts blog

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