About Batteries by Matthew Archer
Batteries are all over the place -- in our cars, our PCs, laptops, portable MP3 players and cell phones. A battery is essentially a can full of chemicals that produce electrons. Chemical reactions that produce electrons are called electrochemical reactions. ... For one thing, all batteries have a maximum current they can produce -- a 500 milliamp-hour battery cannot produce 30,000 milliamps for 1 second, because there is no way for the battery's chemical reactions to happen that quickly. ... To accurately report the state of charge, the pack electronics has to keep a record of the current...

What is Inside A Smart Battery? by Dan Hagopian
If you have a PDA, MP3, MP4, Laptop, Cell Phone, Smartphone, DVD players, or other electronic device then more likely then not the battery within your device is a high capacity smart battery pack. What is a high capacity smart battery pack? A high capacity smart battery pack is a complex battery... This specialized hardware includes: the connector the fuse the charge and discharge FETs the cell pack the sense resistor (RSENSE) the primary and secondary protection ICs the fuel-gauge IC the thermistor the pc board the EEPROM or firmware for the fuel-gauge IC In...

The Chemistry of Laptop Batteries Explained by Mansi Aggarwal
Laptop batteries come in all shapes and sizes also differ in their chemical composition. The chemistry of a battery refers to the chemical make-up of the cells inside the outer casing. The most common chemistries used in laptop batteries are: NiCad (Nickel Cadmium) This is the oldest technology... Always consult the manufacturer or a reputable laptop battery supplier. ... If this starts to happen the battery must be replaced. ... Such considerations are becoming more important as mobile devices become smaller and lighter and battery weight becomes significant.

A Buyer’s Guide to Sony VAIO Laptops Series S and T by John Gibb
There are literally more than a few hundred laptop models available on the market. Even if you have done your homework, you have specified what your needs are and what your budget is, it’s still very hard to decide witch laptop to buy. The main problem with laptops is that you don’t get to buy... For example, if you find out that the laptop you bought a few days ago is disappointing, you can’t just throw it and buy another one; you can do that with a bubblegum, a pack of cigarettes… but not with a laptop!

Will New Batteries Make Laptops Truly Mobile? by Titus Hoskins
Current laptops or notebook computers have one major obstacle to overcome: short battery life. Despite their sleek style and ever increasing higher performance levels, laptops have never been truly mobile. With batteries averaging around 3 to 5 hours of usable power, most laptops are limited in... As everyone knows, recharging a conventional cell battery takes hours, this new battery will only take seconds to recharge or rather refuel. ... Try playing a game or watching a movie on battery power at your favorite beach for any extended time and you will see why laptop batteries are in dire...

What to Do (and NOT Do) if You Spill a Drink on Your Laptop by Justin Anderson
Spilling a drink on your laptop can be a very serious problem. But, depending on what you do, and how fast you react, you can potentially save a lot by minimizing the damage a spill can have on your laptop. What to do in the event of a spill: Turn off your laptop. ... After your laptop has been shut down, remove the battery pack. ... Depending on what was spilled on your laptop, the liquid may be corrosive, like cola and can still be doing damage to your laptop. ... Usually holding the power button down for 10 seconds will be your fastest option to turning off your laptop Remove the...

Batteries - One Size Does Not Fit All by Dan Hagopian
I have a Palm Zire 72 and a Palm m505 PDA. If I buy a Palm Zire 72 Battery that is 3.7 volts can I plug it into a Palm m505 and have that battery power both devices as needed? In a nut shell the question above seeks to ascertain if all 3.7 volt batteries are the same? ... To construct a smart battery the battery manufacturer must carefully plan the internal battery design environment by considering the: design parameters current requirements capacity and runtime requirements temperature requirements safety requirements ambient operational/non-operational temperatures As a...

How to Buy a Cheap Laptop Computer by Robert Scheer
When planning to buy a cheap laptop computer, you need to consider factors that go well beyond performance and memory. You need to consider many factors like size, weight, screen dimensions, battery life, keyboard quality, built-in memory, and also certain other options like wireless connectivity. ... •System memory: The more memory your laptop has, the more applications you can run at once and the better your laptop will perform. ... •Keyboard: Laptop keyboards are quite different from the keyboards we use with the desktop computers.

Buying Gaming Laptops by Jerry Baker
Laptops are designed keeping a target user in mind. The different parameters to consider while designing a laptop are battery life, processor speed, graphics, weight of laptop and cost. Gaming laptops come installed with the fastest processors, cutting edge graphics cards. ... A hefty battery pack, huge heat sink, special ventilation ducts, and several cooling fans and can give the same performance as that of high-end tower PCs. ... Apart from selecting a laptop with hard disk capacity of over 80 GB, consider the speed of the hard disk.

Buying Guide for Laptops, Personal Computers, Notebooks by David Arnold Livingston
Are you an executive always scurrying with your suitcase during business trips? A student always on the go trying to finish as many projects as possible to gain extra credits? Or a businessperson always meeting up with your biz partners to explore more business opportunities? ... Before cleaning, disconnect first the AC power and remove the battery pack. ... Depending on your personal preference, you might consider other factors such as the brand name, in choosing which laptop to purchase. ... Also known as an ultraportable or sub-notebook, if you travel a lot, you may consider acquiring...