Increasing your Cell Phone Battery Life

A battery consists of a cathode, an anode and an electrolyte. The cathode is a metal oxide strip, the anode a metal strip that has a tendency to oxidize, and the electrolyte a conducting medium in which the anode and cathode are kept. When the anode and cathode are connected, the anode draws oxygen atoms thus generating electricity. Various types of batteries are available like alkaline batteries, lead acid batteries, lithium/manganese dioxide batteries, nickel metal hydride batteries (NiMH), Nickel cadmium (NiCd) batteries, lithium ion batteries etc. For mobile phones lithium ion (Li-Ion) batteries are predominantly used.

Lithium ion cell phone batteries are rechargeable batteries. They are much lighter than other batteries because they carry extremely high-density charges and are easier to store than NiMH batteries. They do not suffer from memory effect. Sony Corporation first introduced lithium ion batteries in 1991.

Memory effect is a strange phenomenon – if a battery (usually nickel batteries) is repeatedly charged at partial discharge, the battery “forgets” that it has the capacity to discharge fully. Gradually the battery loses all capacity to fully recharge and has to be discarded. Li-Ion batteries also have a low self-discharge rate of approximately 5% compared to other batteries that are generally around 20-30%. However if mistreated Li-Ion batteries can be dangerous and have very short lives.

Some guidelines that can increase cell phone battery life are:

* Never discharge Li-Ion battery fully, recharge it at 40% capacity.

* Never store batteries above 60 deg Celsius.

* Do not keep batteries in moist places.

* Do not dispose off batteries in fire. They may catch fire or explode.

* Store in a cool places, this will increase their life considerably.

One of the disadvantages of Li-Ion cellular phone batteries is that they have a fixed shelf life of approximately 5 years. The capacity of the battery reduces about 20% every year. Hence it is a good idea to check the manufacture date on cell phone batteries before purchasing. Generally in cell phones, the batteries cannot be interchanged and cellular phone batteries are model specific.

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KRZR – ive put songs on to the phone via data cable, how do set one of these songs for a ring tone?

Find your cell phones from your favorite brands or wireless carrier. Get your cell phone and meet your purchasing budgets.

I am new to this, I bought the motokrzr phone with all accessories, and have been adding music to the phone via data cable to the memory card, not phone memory and would like to now set some of these songs for ring tones.

Your Cell Phone and the Environment

An astonishing number of people own and use a cell phone (celular), with current figures totaling over 800 million worldwide. It has has become an important part of daily life, and improves business and travel opportunities, whilst providing the best possible level of communication across the globe.

However, the high numbers of users are also subject to changing trends for a number of reasons including improved features, fashion and accessories. This means that upgrades are a regular occurrence, with each device being used for an estimated 12 to 18 months. This means that there is a lot of cell phone waste.

Many users are not aware of the potential damage to the environment that incorrect disposal of cell phones (celular) can cause. Incorrect disposal means throwing any cell phone away, which is the typical fate assigned to an unwanted device. However, components within it can have a terrible impact on the environment and so need special disposal. All cell phones (celular) contain persistent metals which do not degrade in the environment. They also contain bioaccumulative metals which become toxic over period of time.

For instance, cadmium which is present in a cell phone (celular) is significant enough to cause damage in small doses. It is the seventh most harmful known chemical, and is capable of causing cancer. Cell phones also contain lead which causes liver damage in adults and neurological development problems in children when entered into the bloodstream. Other hazardous substances such as nickel and mercury provide further cause for concern.

If not disposed of properly, the metals from the cell phone (celular) can leak into the environment through corrosion and cause a series of problems in the environment. If thrown away, it will go to a landfill where it will remain. As many elements do not decompose, the level of harmful toxins increases and so does the potential damage. Lithium can burn with water exposure, and so can potentially begin underground fires when present in large quantities. Any of the hazardous or poisonous substances could contaminate local water supplies or the nearby soil. If either of these is affected than the toxins enter the food chain with terrible results.

In effect, incorrect disposal of the cell phone (celular) can create a form of poisoning. The immediate effects include health problems such as genetic or reproductive defects and detrimental effects upon the nervous system and delayed general development. The long term effect is global pollution. When waste that can not be broken down properly such as that in a cell phone (celular) is decomposing it creates methane gas. Methane gas is more damaging than CO2 and so has major impact on global warming. Not many people realize that all this can be caused by disposing it in an incorrect manner.

The best way to combat cell phone (celular) damage to the environment is to recycle it by returning it to a shop. This includes the accessories also. Some shops will ensure the product is sent to developing countries for reuse. Others will reclaim the metal parts to prevent them going into a landfill. Some cell phone companies even make a charity donation for every recycled device to encourage the practice. The other possibility is that they will ensure the product is sent for proper disposal. This includes disposal of hazardous materials.

Whichever option is used, the positive side effect is that less hazardous waste goes into the environment. Now that you know the facts, make sure that you dispose of your cell phone (celular) properly and remain environmentally sound with this one simple gesture.

This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author’s name and all the URLs (links) mentioned in the article and biography must be kept.

This article can also be accessed in portuguese language from the Article section of page www.polomercantil.com.br/celular.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br