Your Guide to Battery Types by Chris Robertson
Every mobile electronic device we own runs on battery power, yet we take batteries for granted - at least until they run out of juice. No matter what kind of device battery - laptop battery, cell phone battery, camcorder battery, remote control battery - you need, it's helpful to know the... An NiMH is a rechargeable battery that is similar to a nickel cadmium (NiCd) battery, but that has double or triple the capacity of a NiCd battery. ... Gel Battery - A gel battery is also known as a sealed lead acid (SLA) battery, and its distinguishing feature is that it doesn't have to be kept...

PDA Battery Degradation and Power Loss by Dan Hagopian
Extending your PDA Battery Life so that you get the most cost effective use of your PDA battery begins with always keeping a spare pda battery replacement. PDA batteries are cheap enough that owning a backup pda battery makes absolute sense. Beyond a spare pda battery replacement you can use... If you are using a pda battery (or any lithium-ion or lithium-polymer battery) when your battery's capacity reaches 60% to 70% the pda battery will need to be replaced. ... Contained within your PDA Battery is a design and chemistry make-up that impacts your battery life far more than your usage...

Lithium ion Rechargeable Batteries by Dan Hagopian
Lithium ion rechargeable batteries are by far one of the most important technologies that have been developed over the last 10 years. Lithium based batteries are used in most portable devices from PDAs to laptops to digital cameras. Lithium ion rechargeable batteries are not hazardous when... Let’s look closer at the battery’s design. ... The basic design of a battery includes two electrodes, an anode (the positive end) and a cathode (the negative end). ... The two electrodes contained within the battery are the anode and the cathode.

Integrated Power Management Circuits by Dan Hagopian
Discussing internal battery design would be incomplete if we did not write on the subject of integrated circuits. Batteries for PDAs, MP3s, Digital Cameras, and Laptops have designed within them integrated power management circuits that insure that the deliverance of reliable power is properly... A real example of a battery pack protector circuit is a Texas Instrument two-cell lithium-ion (Li-Ion) and lithium-polymer (Li-Pol) battery pack protector device. ... Power management integrated circuits offer other key benefits as well including maximizing battery life between charges, minimize...

How To Find Discount Laptops by Dave Westin
It can be very overwhelming to try and sort through all of the different laptops to find the best deal. There are some great steps that you can take to minimize shopping time and still get a discount laptop. Many companies push deals on different computers that can look good. ... Intel makes specific processors that can extend the battery life of your laptop. ... The first category is the battery range. ... There are also other options to extend battery life like extra batteries and power adapters to plug into various power sources.

Selecting a Personal Digital Assistant by Deryck Richards
A Computer in Your Hand Carrying around an address book and planner is becoming a thing of the past. With new PDA developments, you can manage your contacts and schedule, use e-mail, and even listen to music. Personal Digital Assistants, originally called "Palm Pilots," previously were used... If you plan on using your PDA primarily for e-mail, get a PDA with a good keyboard and good battery life. ... When purchasing a PDA, make sure that the programs on the PDA are compatible with the programs on your computer.

The 24 Hour iPod Battery by Dan Hagopian
The 24 hour iPod Battery: Fact or Fiction? It would be great if our iPods could play non-stop for 24 hours but is it really possible that such a battery exists? How does consumer usage effect the iPod battery life and can such a tiny design space truly accommodate the capacity specifications... My problem wasn't the battery, but the battery life calibration, which has not been done as it should." The reality is all batteries including batteries designed specifically for iPods (regardless of generation) have a certain amount of capacity and once the full amount of the capacity has been...

How to Select the Best PDAs by Natalie Aranda
With so many mobile computing options out in the market right now, it is rather difficult to choose the right solution for yourself without having to do hours of research, and most people definitely don’t have time for that. When people talk about mobile solutions and the like, they usually mean... This is a great PDA to consider when you are ready to pick one up. ... When you want to buy a PDA, it’s important that you look at the pocket pc software that comes with the device. ... Of course, this PDA will also support all your mobile computing needs with built in Wi-Fi and Bluetooth...

Internal Battery Design by Dan Hagopian
The wireless revolution, the prolific use of PDAs, MP3s, MP4s, Laptops, Cell Phones, Smartphones, DVD players, and other portable devices have increased the need for smart and high capacity portable batteries. Portable batteries however are not typical in design. ... A smart battery stores, monitors, prevents, and transmits critical battery information stored within the battery. ... Indeed the battery that powers your portable device is what is known as a smart battery and as such the internal system design of a smart battery is more complex then most people realize.

How Does a Palm Pilot Work? by Dan Ayala
Just The Facts, Ma'm Palm pilots are all the rage now. Everyone has a pda or wants to get one in the near future. If you don't know much about a pda, however, it might be helpful to learn a bit about them. The history of the palm pilot is an interesting part of our technology advances. ... What is the best brand of pda? ... AN operating system tells the microprocessor what to do and sends instructions to the various parts of the pda. ... The pda has constantly been improved until it has become nearly indispensable to many people.