2008-11-02

How to protect laptop battery


How to protect laptop battery(5)


On the subject of extremely cheap laptop batteries, be cautious. Laptop batteries operate in a

tough environment. Temperatures inside the battery compartment of a laptop commonly

exceed 110 ° F. Many of the cheaper batteries are not equipped with the safety cut off

features found in batteries supplied by the major laptop manufacturers.

Finally, an important consideration in thinking about how to protect laptop batteries is the safety
of these devices, especially in the context of recalls by Dell, Sony, Apple, Lenovo, IBM and

Toshiba. Over 7 million laptop batteries were recalled by these companies as a consequence of 6-
7 incidents over a period of years. Those incidents may have been caused by manufacturing

defects or the actions of the owners i.e failing to follow guidelines such as these on how to protect

laptop batteries from being damaged or impaired.

article source :http://www.laptop-security-pro.com/how-to-protect-laptop-batteries.html

How to protect laptop battery


How to protect laptop battery(4)

Guidelines on How to Protect Laptop Batteries

1.Avoid placing laptop computers in direct sunlight or parked cars where temperatures can

reach over 140° F. Extreme temperature ranges will at the very least shorten battery life.

2.Unlike earlier technology there is no benefit in completely draining a Lithium-ion battery until

it is flat. If it is done repeatedly it will reduce the life of the battery. While this was a common

practice with nickel metal hydride batteries, it is no longer required as the new technology is

ote susceptible to the same memory effect.

3.On the other hand lithium-ion batteries cannot be overcharged, but keeping them fully

charged all the time will reduce their life. There is no need to remove the batteries from the

laptop, just disconnect the power chord and run it off batteries for 2-3 hours a week to keep the

battery cells healthy.

4.Under no circumstances open or fiddle with a lithium-ion battery. They are very sophisticated

devices containing processing capabilities and safety devices. Interfering with these mechanisms

can potentially make them dangerous.

5.Use of the laptop's power management facility will make each charge last longer and extend

battery life.

6.Spare batteries must be individually wrapped so as to avoid damage from impact and any

possibility of a short circuit resulting from the batteries contacting one another.


How to protect laptop battery


How to protect laptop battery(3)


Two to three years is a good life for a laptop battery. At that stage an investment in a

replacement is seldom a wise idea. The laptop is living on borrowed time.

We need to know how to protect laptop batteries because:

They're expensive to replace.

They dicatate how mobile we can be.

Laptop security - over 10 million Lithium-ion batteries batteries have been recalled as a

consequence of incidents where they have over heated and spontaneously caught fire.

article source:http://www.laptop-security-pro.com/how-to-protect-laptop-batteries.html

how to protect laptop battery


how to protect laptop battery(2)


Before getting into the detail of how to protect laptop batteries, let's look at the technology. It


will help answer the question and also shed light on another, "what is a reasonable life for a


laptop battery?"


Most portable electronic devices including laptop computers are now powered by lithium-ion


batteries. Lithium-ion superseded nickel metal hydride technology providing superior power to


weight ratio, a longer discharge cycle, absence of the "memory effect" and a lower cost.



Under optimum conditions, lithium-ion batteries will provide excellent service over 300-500


discharge cycles, which equates to 2-3 years of laptop usage. That is also the average life of a


laptop computer. At that age hard drives become susceptible to problems and there will be a


new version of Windows that struggles to boot on this now obsolete laptop.

how to protect laptop battery


how to protect laptop battery(1)

most of nowadays laptop battery is lithium batteries, lithium is almost no memory effect, the the


best charging time is about 20 percent remaining battery, the charger can be about 98%.

only a nickel hydrogen battery has memory effect, should only be used up after the filling.

Then there is another mistake that to remove battery from laptop, inside lithium battery there

are two circuits, one is to protect the circuit, another is a management circuits, management

circuit protect the lithium from over charge-discharged, however, which means when the

battery full, it is impossible to replenishment more electricity into the battery, so there will be no

major impact.But you should avoid use batteries for while then use external power supply and

switch over very often, that could reduce your battery charge and discharge times. because the

battery life of the battery time are calculated using the number of full power. Therefore, if you

do not complete the charging before use it. This counts as one time, while power consumption for

you is only half complete. So, a fully charged battery relatively more efficient.
 
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