Does a Laptop
A laptop battery works in much the same way as batteries that go into
portable CD players, remote controls, and shower radios. Just like the
batteries used in these household items, laptop batteries come in
different sizes based upon the size of the laptop. Laptop batteries
however, contain within them complex charging circuitry that works
together with a laptop's hardware.
Inside each laptop
battery are internal power cells. These power cells are arranged in a
series and are parallel to each other. This is done in order to maximize
the voltage level for the battery as a whole. In addition these cells
are controlled by a circuit board. The circuit board regulates how the
cells work for both the process of discharging and recharging energy. It
makes sure that your battery is not overcharged when charging, and it
makes sure that each cell drains the same amount so you can have a
longer run time.
Inside each battery
there are also positive and negative electrodes. In order to power your
laptop, a chemical reaction occurs with both the positive and negative
electrodes. This reaction flows in a specific way in order to discharge
energy. Plugging in your adapter reverses this process in order to
recharge your battery. The process of reversing the chemical reaction
occurs for both positive and negative electrodes. To make both the
discharge of energy as well as recharge process work, this process must
be exact. If not, then a short-circuit may occur. This process is
basically the same whether your battery runs on Lithium Ion (Li-Ion),
Nickel Metal Hydride (Ni-MH), or Lithium Polymer (Li-Poly).
This process is then
regulated by hardware within your laptop. The hardware in your laptop
ensures that the cells are functioning to their capacity. This is what
also allows you to check the life left on your laptop battery before it
needs to be recharged. A battery symbol is typically displayed on the
right corner of your task bar. This symbol graphically shows how much
energy has been discharged as well as how much is left.
Although a laptop
battery is rechargeable, it does have a limited life span. A typical
battery usually lasts for about 500-700 charges before it will no longer
be capable of recharging, and a replacement is necessary. The amount of
charges can vary depending on the main use of your laptop. Some
functions require more energy then others. Using functions such as a DVD
player or using the brigh
screen setting can drain the battery quicker, thus requiring it to be
charged sooner. The more often you need to charge your battery, the
sooner the battery will be drained of its life span.
additionally custom tailor their laptop batteries based upon the needs
of each laptop model. A few things that impact the appearance of a
battery are the overall size and weight of a laptop. After all, a small
notebook would be difficult to carry if the battery weighed an
additional two pounds. These factors account for their varying sizes.
One size does not fit all in the world of laptop manufacturing. Overall
functionality is the key.