by: Will Koh
There are a range of different mobile phone, video camera/camcorder and digital camera batteries out there with varying capacities and battery chemistry. We will explain what the differences are for each battery chemistry and try to clear up the jargon used on the labels of mobile phone batteries. There have been several developments in battery technology and below, we will outline each battery chemistry's features, pros and cons and their applications to mobile phones today.
"Memory Effect" in Batteries
Memory affect refers to the need for certain batteries to be "serviced" by regularly discharging the battery completely before recharging. Ni-Cad batteries are the main type of battery chemistry that requires this cycling and newer types of batteries such as Li-Ion and NiMH do not suffer from memory affect.
Battery Capacity Ratings
A battery capacity rating refers to the load or current that can be placed on a specific battery type. The battery capacity rating is usually measured in milliampres (mAH)
Ni-Cad (Nickel Cadmium) Batteries
In the past, majority of rechargable batteries used in portable devices such as mobile phones, camcorders and cordless phones used Nickel Cadmium as the main battery chemistry. Although this type of battery has drawbacks such as the "memory effect", it is still one of the most commonly used battery in cordless phones, CD players, Radios and other portable devices due to their low cost per battery cycle. The use of these batteries in mobile phones today is rare due to their memory effect problems and inconveniences. Despite these obvious drawbacks, it also has environmental implications due to the metal used to manufacture these batteries and are fast becoming replaced by Nickel Metal Hydride Batteries.
NiMH (Nickel Metal Hydride) Batteries
NiMH batteries are one of the growing battery chemistries today mainly due to the fact that it does not suffer from memory effects like a NiCad battery does. Because of this advantage, they are mainly used in Laptops and mobile phones and sometimes also as a battery source for video cameras and digital cameras. This is an important and main feature that makes NiMH batteries attractive as consumers are not burdened by having to "service" their batteries by discharging it fully before recharging. They also have a higher capacity rating compared to Ni-Cad (approx 30% higher) and Alkaline batteries, however their main drawback is that these batteries self-discharge over a short period of time which makes them not suitable for storage.
Li-Ion (Lithium-Ion) Batteries
These batteries are quite new to the market and have the lowest discharge rating compared to Ni-Cad and NiMH batteries. They do not suffer from memory effect and is one of the most commonly used type of batteries in mobile phones today. They have an excellent power to weight ratio which makes them highly attractive to portable devices such as mobile phones, video cameras and digital cameras. All our mobile phone batteries we offer are Li-Ion as they are superior compared to other battery alternatives.
Li-Polymer
This is relatively new and we are beginning to see more of these batteries appear in mobile phones today. They are considered as the best battery chemistry today for mobile devices due to their high capacity and low weight. Li-Polymer batteries do not suffer from ?memory loss?.
About The Author
Will Koh For a range of mobile phone batteries, visit: http://www.circuitcentral.com.au or simply contact us for any queries.
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The Cell Phone Facts You Need to Know
The Cell Phone Facts You Need to Know
by: Ted Anders
The popularity of cellular phones all over the world has simply exploded and you can't go anywhere in the world, not even a poor country that does not even have hot water, where people are not walking around with cell phones. The popularity of these phones is obvious because it makes interpersonal communication significantly easier and faster, however are there any drawbacks to cell phones or even health risks you should be aware of? Of course, when you go buy a cell phone the vendor does not clue you into to anything other than the great benefits, however you should review some of the potential safety issues as well so you know all the benefits and drawbacks to owning a cellular phone.
Is there a Health Risk?
You may have seen on the news or read in the newspaper or even online about possible health risks from using cellular phones. However, to date there is no sound proof that cellular...
The Cell Phone Facts You Need to Know
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Mobile Phone Buyers Guide
Mobile Phone Buyers Guide
by: Paul Smith
Guide to buying a mobile phone
If you already have a mobile phone, you can switch to a different network and take your phone number with you, although you may need a different handset. You could get a connection with a new number, using your existing handset.
Networks
When you buy a phone you need to choose a network - O2, Vodafone, Orange and T-mobile are mobile phone networks. Each network is a collection of radio towers all over the country, linked together and transmitting people's conversations.
A mobile phone service usually comes as a package, made up of the phone itself and access to a network. There are five main mobile phone networks in the UK - O2, T-Mobile, Orange, Vodafone and most recently '3' with its growing third generation network which can support mobile video. Other operators such as Virgin and BT Mobile use the 5 main networks and there are many airtime resellers...
Mobile Phone Buyers Guide
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Staying Mobile - Replacing Your Cell Phone Battery
Staying Mobile - Replacing Your Cell Phone Battery
by: Eric Comforth
There are several cell phone replacement battery choices on the market, some better than others. Here we will explore a few of the options out there.
Basically, there are four different types of cell phone battery:
? Nickel Cadmium Batteries (NiCd): These are the oldest type of cell phone battery. To counter the problem of ?memory effect? which lessens the life of the battery, they must be fully discharged before being recharged. This is obviously more time consuming and lessens the efficiency of the cell phone.
? Nickel Metal Hydride Batteries (NiMH):
Developed in the 1990s. These batteries are more efficient than the NiCd type. Although prone to some memory effect, they are quicker to recharge than the NiCd and have a battery life up to twice as long.
? Lithium Ion Batteries (Li-Ion): Lithium Ion Batteries are the most popular cell phone batteries...
Staying Mobile - Replacing Your Cell Phone Battery
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The Razr Family is Expanding! Razr V3i, Pink Razr, Blue Razr, Verizon Razor
The Razr Family is Expanding! Razr V3i, Pink Razr, Blue Razr, Verizon Razor
by: Sam Michelson
Motorola Razr for CDMA Users
Motorola is marketing different phones for men and women. Moto?s newest line of pink and blue Razr offspring seems to assume that there are men who will prefer blue and women who will want the pink one. They?re probably right!
The classic Silver Motorola Razr captured the lion?s share of new cell phone buying over the past year or so, causing Motorola to encroach on Nokia?s enviable leading position.
Motorola is planning to cash in on its huge success with the razor thin look and feel of the original Razr v3. The NPD Group, a leading cellular market researcher, found that Motorola cell phone sales accounted for 30% of the 31.6 million cell phones sold in the third quarter of 2005. The Motorola V3i with iTunes software and the Pink and Blue cell phones promise to give Motorola an ever-increasing share of the...
The Razr Family is Expanding! Razr V3i, Pink Razr, Blue Razr, Verizon Razor
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Uses for Phone Cards Employers Parents Anyone
Uses for Phone Cards Employers Parents Anyone
by: Bob Benson
Many people find that having and using phone cards for long distance calling simply makes sense. Whether you have employees who are sometimes out of the office or kids away from home, phone cards can have many practical uses.
If you provide calling cards for kids or employees to get in touch with you, be sure you?re purchasing from a reputable company. Some phone cards are notorious for their busy signals. When you call in, you get a recording that indicates the circuits are all busy and that you should try your call again later. It?s not going to do much good to page your employee only to have him or her unable to get a line to call in with the phone cards.
Think it?s going to be too much trouble for your teen to keep up with a phone card? If he or she can memorize the phone card number, parents can retain the phone card and simply recharge it periodically to be sure the teen...
Uses for Phone Cards Employers Parents Anyone
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Mobile Phone Glossary
Mobile Phone Glossary
by: Paul Smith
3G
The third generation of mobile networks, with video calling, web browsing and multimedia downloads of up to seven times faster than standard 2G networks.
Bluetooth
A specification for short-range wireless connectivity that allows users to make wire-free connections (via radio link) between a wide range of communications devices.
Dual-band
Phones that can switch between two different bands of frequencies. Most phones in the UK are now dual-band, capable of switching between GSM1800 and GSM900 frequencies. Useful for travellers allowing roaming on a greater number of networks across the world.
GPRS
General Packet Radio Service. Data communications upgrade for GSM networks, enabling a maximum data rate of up to 115kbps.
GSM
Global System for Mobile Communications. A digital cellular communications standard used throughout Europe, and elsewhere around the world....
Mobile Phone Glossary
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Mobile Phone Satellite Navigation
Mobile Phone Satellite Navigation
by: Francis Ononye
Dedicated portable GPS navigation systems in cars are now very popular,
What could be better than being able to get to wherever you want to without having to stop and ask for directions.
Nevertheless, a lot of people overlook a convenient an easy way of navigation which is using your mobile phones for GPS Navigation. You might think because of the small screens on mobile phonbes, it wouldn't be practical, but from experience that is farther from the truth. There are quite a few advantages choosing a a mobile phone over a dedicated portable GPS system for navigation. The main being convenience, Since mobile phones are usually compact and small, it makes it much easier then having a bulky dedicated system.
Another overlooked advantage is security, Since dedicated portable navigation sytems come with a distinct windscreen car mount.
There have been cases where cars have...
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Cell Phone Listening Devices Keep Tabs on Teens
Cell Phone Listening Devices Keep Tabs on Teens
by: Kingston Amadan
Nearly every high school student, and even many junior high students, has a cell phones. This makes it very easy for you to keep tabs on your teenagers with cell phone listening devices. Because they are interested in have phones that allow them to call their friends, you will be the hero when you give them a cell phone. And because you want to keep tabs and make sure that they are not engaging in destructive behavior, you can make use of these cell phone listening devices to keep track of where they are and what they are doing.
The great thing about today?s cell phone listening devices is that they do more than just let you listen to conversations over the cell phone. They also let you hear what is going on in the room, and they come equipped with GPS trackers. These are great because you know where your teenager is, as well as what she or he is doing.
Car tracking devices...
Cell Phone Listening Devices Keep Tabs on Teens
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