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How to measure the power consumption of notebook battery

How to measure the power consumption of notebook battery

The Original article posted in http://www.laptops-battery.co.uk/blog/

Why laptop battery capacity reduce as time? Why battery calibration can improv battery capacity? How to charge the battery correctly? All above probelm are related to battery power consumption. Open circuit voltage measurement ... ... Coulomb measurement, impedance measurement, what are these terms mean? Here we will simply introduce all of them!

Whether it is the out nickel-metal hydride batteries, lithium-ion Vostro 1310 battery , or not commonly used lithium polymer batteries, and even coming silver zinc batteries, are equivalent to the a storage warehouse of electronic power. The differences between them is that the way out of the Treasury, the volume of stocks it. In laptop batteries, there is a power manage center - power consumption chip, it is the management of power measuring, charging and discharging managing.

In the measurement of battery technology, there are four kinds common method (open-circuit voltage measurement, Coulomb calculation, impedance measurement, integrated look-up table method), but not all Vostro 1510 battery used only one method, usually using a combination of methods to one of the main method of supporting the rest of the way computing power. The first one is the open circuit voltage measurement, this method is that measuring the battery voltage under static values to calculate the remaining battery capacity, but as a result of stationary lithium-ion battery voltage and remaining capacity relation is non-linear, so this method measured valueis not accurate, the vast majority of mobile phone batteries are calculated using this method;

The second one is Coulomb calculation, the method is by measuring the Vostro 1520 battery charge and discharge current, the current value and time value After the calculation of product integration has been carried out by filling the battery into the power and the release of electricity, Coulomb's method is a accurate method of calculating power;

The third one is the impedance measurement, measuring its resistance to get the remaining battery capacity value; the fourth is a comprehensive look-up table method, by setting up a related form, the voltage, current, temperature and other parameters, you can query the remaining battery capacity.

Therefore, in addition to the internal structure of the battery batteries, there are control chips, the chip which contains 1-2 kinds of batteries power measurement method of calculation, and a charge-discharge protection circuit. Vostro 1710 battery manage program had been setted in the system, and through access to the chip-driven interface, and then set on the battery management.

So, why the dell vostro 1000 battery will become weak, but the battery calibration can improve the battery capacity? Notebook battery 6-cell and 4-cell, means that there are a number of battery cells inside the battery. The batteries cells conenect together, the battery capacity reduce reason is that: all the batteries quality and discharge rate can not be in the same level. After discharge, one battery cell capacity in substantial reduction, in order to maintain voltage stability, the battery management chip will be according protection of core power as the "bucket principle", so after the electricity charge will decrease.

Battery calibration is to balance the multiple batteries cells, the dell vostro 1500 battery cells own internal resistance can not be completely consistent, the large internal resistance battery will shoulder the larger current, and its own consumption more than the other batteries. So regular battery calibration is necessary - it can balance the burden of multiple batteries work and prolong the whole battery life.

The article is from : laptop battery blog

Wi-Fi and read the latest news after the stop for the Pisanu Law

Following approval by the Italian Government, the new security package taken place in recent days, many were and still are the news and controversy about changing these rules about the topic Wi-Fi, which clearly affects all users accustomed to using laptops or smartphones to connect even in public.

With this measure, the Council of Ministers shall eliminate de facto part of Article 7 of the Pisanu Decree (which needs to be abolished entirely of an express repeal) and regulates in a new way to use and the provision of wireless internet networks wires.

But in reality, with this decree, what changes? E 'is the question facing almost all Internet users and that until now has not a single answer.

To listen to the Interior Minister Roberto Maroni, from January 1 will be allowed "to connect to Wi-Fi systems without the restrictions introduced five years ago and are now overtaken by technology, but this is not yet clear from a purely practical view.

At the moment, experts suggest two different levels of responsibility: one related to the operators, which would no longer apply to the Quaestors to request authorization to enter a free network in their activities, and one, however, for users for whom even to be clarified are the means of authentication, which may occur also through SMS as previously permitted - even if it is almost never mentioned - a circular of the Prodi government in 2007.

Still unclear is the situation after this interesting, but currently no detailed measure. The Government provides news in December with regard to practical applications and explanations on the matter. Meanwhile, the users, including users and lovers of the "portability", waiting with trepidation.

 

Terminology :   Dell laptop battery,  Dell latitude d620 battery,  Sony vgp-bps9/b,  Fujitsu lifebook t4210 battery,  Dell CF623 battery

From Sony Ericsson comes the denial: "No one smartphone with Win 7!"

It was a couple of months there were rumors suggesting that the company famous half Japanese and half-Swedish Sony Ericsson was about to launch a smartphone with Windows 7, but it is cool, however, a total denial of what has been reported.

As the company points out the mouth of Steve Walker, production manager, X7 and X11 models Xperia - whose launch is anticipated by the markets of the world - do not fit the popular Windows instead Phone 7.

After the press conference he held, Walker said that by the time his company "does not intend to mount on his smartphone WP7" Paradoxically, however, admitted that "at this moment his company is in talks for ' buy some licenses with Microsoft. "

What are the strategies of Sony Ericsson, for the moment, it is not so clear. The fact is that the company does not seem appropriate to approve its models to those of others to make you fit the above system from Microsoft.

We know how he wants his trusty Sony Ericsson Google Android software is certainly not bound by specific hardware and, most importantly, the "Linux old-timers" origins ", which certainly make it closer to a certain philosophy of the software. What are the next steps of the house? Virtually unknown, but apparently far from WP7.

 

Tags:   Dell Vostro 1500 battery,  Sony VGP-BPS9A/B battery,  Fujitsu lifebook t4010 battery,  Sony VGP-BPS12 battery,  Dell GD761 battery,

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ASUS Lamborghini VX7: The custom-built for any notebook

Alluring look of the Lamborghini, chrome air intakes like the hood of the Murcielago sports, this notebook ASUS has chosen a collaborator with all respect that his craft has been able to give care to the Eee PC Lamborghini VX7 a unique design as its Roadster reaching exorbitant.

The notebook, aesthetically designed by the skilled hands of the designers in Sant'Agata Bolognese, could be presented at CES in Las Vegas, where we expect plenty of new features in the technology sector and it is rumored that can reach a price of 2,200 Euro, to be sure, not too for those accustomed to the style Lamborghini, but let us see what holds this soul-built cars from the super luxury features.

With a 15.6-inch display technology by 1920 X 1080 Full HD multimedia experience leads to very realistic, thanks, equipment, Bang & Olufsen audio speaker system and SRS Premium, which reproduce the quality and the effect Cinema.

The determination and speed are handled by a Core i7 latest generation associated with a quantity of memory that can tap the 16GB DDR3, making it unique in the speed, impressive, calculation while the graphics are entrusted nVidia's Ion 2 Graphics dedicated to the smooth playback of Blu Ray and HD.Ben equipped with Blu Ray DVD player, network card Gigabit Ethernet, integrated wireless module Bluethoot 3.0 for exchange by high-speed HDMI and USB 3.0.

Windows 7 is the operating system, installed, used to coordinate all these elements of high quality, ASUS Lamborghini notebook VX7 is dedicated to lovers of the range, of course, demand high performance and functionality.

 

Tags:   Apple laptop battery,   Apple A1175 battery,   Pavilion DV9000 battery,   Dell inspiron 1545 battery,   Toshiba PA3534U-1BRS battery

It works for the successor to Windows Vista

They started work on the new operating system Microsoft's Redmond, we talk about Windows 7 also known by its English name Windows Seven. Previously other names were also chosen, such as Windows and Windows Blackcomb Vienna. The date of issue, of course, is not yet fixed, but it is thought that approximately will be released between late 2009 and early 2010, the first demos but you can already see in 2008. Windows 7 will therefore be the heir, if one can call the Windows Vista operating system that has little more than a year old and certainly has not met the expectations of Bill Gates.

Currently, according to an intervention of the official Windows 7 blog, or the Engineering Windows 7, it is said that people currently employed in the development of the operating system are about 900, of course, divided into different groups.

This new operating system should adopt the technology. NET, In order to mean abandoning the classic menu, which we have become accustomed, or the menu with the Start button, adopted for the first time since Windows 95. I say should because, knowing already the Microsoft house, you can never be sure until you see it, since the technology. NET must have been adopted with Windows XP and Windows Vista, which, as you can see there was.

One feature to note about the graphics card as it will be possible handle multiple graphics cards simultaneously, And independently of any manufacturer.

Another long-awaited technology with the advent of this operating system is the technology called "Microsoft Surface", The famous touch screen to be clear, this is thanks to a multi-touch screen that allows you to do all the operations we do with the mouse simply with the use of the fingers.

The question that springs to mind is, will truly be a useful thing now that we were now accustomed to the mouse?

 

Tags:   laptop battery,  Dell Latitude D820 battery,  Dell Latitude X1 battery,  Thinkpad X300 battery,  Dell latitude d630 battery

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Mini Guide to Notebook LCD Monitor

The LCD is a key component in a laptop, and is evaluated against the following criteria:

The screen size of notebook you choose based on the use you make of the laptop. If you want maximum portability go to a 13.3-inch LCD screen. While a good compromise is a 15 inch screen.

If weight and size are not a problem that you want to use the notebook to an old desktop computer for home or office you might opt for a 17-inch laptop with a 17-inch screen could 'well be used for watching movies or gaming.

The widescreen display is the screen resolution at 16:10. This standard allows great views. Very useful for watching movies on the laptop, some people who work with graphics programs or excel. Council to choose a laptop with the glossy screen, has the advantage that is best in terms of colors, brightness and viewing angle. The abbreviations Color Shine, Crystal Brite, TruBrite, X-Black, UltraSharp, BriteView distinguish their glossy screens.

The viewing angle is very important. When you choose a screen looking for to dwell mainly on the corner of sight and color rendition. Other highlights include the brightness and reflectivity, and it also affects consumption, as the monitor is an important element that affects the battery life of notebook, so if you travel or use your laptop on the move to choose a monitor by low consumption.

Monitor resolution should be the native, so that the monitor should be in the best possible way. To use non-professional notebook for the recommended resolutions vary from 768 to 1024 × 1440 × 900. For professional use, with heavy graphics software applications, programming, and also for rendering in 3D gaming are even better resolutions as high as 1680 × 1920 × 1050 or 1200. Windows Vista compared to XP has a feature that allows the operating system to best fit at high resolutions.

 

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Toshiba PA3191U-2BRS battery replacement

Toshiba Li-ion 10.8V 4400mAh

• Power your PA3191U-2BRS with 6 Cell Primary battery. The PA3191U-2BRS battery allows you to work seamlessly when you are on the move for business. This Toshiba PA3191U-2BRS battery also fits for : Tecra 9000, Tecra 9100, Tecra M4.

Toshiba PA3191U-2BRS- Product information

• Tech Specs : Li-ion, 4400mAh, 10.8V. 500-600 recharge Cycles
• Product Type : Brand new, Replacement Battery , 100% compatible with the OEM PA3191U-2BRS.
• This PA3191U-2BRS battery has been tested and validated on Toshiba systems to ensure it will work with your notebook.
• The battery also work with the follwing model: Tecra 9000, Tecra 9100 battery.
• The Toshiba PA3191U-2BRS laptop battery features: long battery life and maximum power, quick-charging.!
• Order Toshiba PA3191U-2BRS battery now: Full One year waranty and Toshiba battery support.
• Warraty : We guarantee that Our PA3191U-2BRS battery are make up of new cells.

Toshiba PA3191U-2BRS Code:

PA3084U-1BAS, PA3084U-1BRS, PA3128U-1BRS, PA3176U-1BAS, PA3176U-1BRS, PA3191-2BAS, PA3191U-1BAS, PA3191U-1BRS, PA3191U-2BRS, PA3191U-3BAS, PA3191U-3BRS, PA3191U-4BAS,PA3191U-4BRS

Toshiba PA3191U-2BRS fit models:

Toshiba Satellite 6000 battery, Tecra 9000 batetry, Tecra 9100 battery, Tecra M4 battery, Tecra TE2000 battery, Tecra 2100 battery Portege 4000 battery, Portege M200 battery, Portege M400 battery

 

Panasonic HDC SD9

An amateur camera at a competitive price, which guarantees fun and high quality shots. We are talking about Panasonic HDC-SD9Small, lightweight and easy to use.

The HDC-SD9 is equipped with a jack for external microphone, headphone jack, built-in lighting and zoom Leica brand. E 'can record in full HD on an SD or AVCHD format. It also has 3 separate CCD for each color of RGB, which provide excellent color fidelity and sharpness with all colors.

Very interesting optical Image Stabilizer MEGA O.I.S., The function "face detection", Which automatically recognizes faces by adjusting exposure, contrast and color tones of the skin, and finally the" Pre-Rec ", which enables recording 3 seconds before turning the camera through the appropriate button.

The 4 GB SDHC memory card provides a range of 30 minutes by shooting at the maximum setting. The videos are recorded in AVCHD format on SD / SDHC with audio of 2 or 5.1 channels and on four different levels of quality, 6, 9, 13, 17 Mbit / s. Filming may be carried out in automatic or manual mode, it will allow you to adjust the white balance, shutter speed, aperture and so on.

The HDC-SD9 has a 2.7-inch LCD, 16:9 aspect ratio, and Leica Dicomar lens with 10x optical zoom. The maximum resolution for video and images is 1,920 x 1,080 pixels. The recording formats supported are MPEG-2 and AVCHD video and JPEG for photos. Included you will find the editing software and burn HD Writer 2.5, which allows you to review movies with the HDC-SD5 on your computer.

All Tracks / audio and video inputs are located on the camera body, including HDMI video output, but is protected by the battery. Unfortunately the package does not include the HDMI cable for connection to HD Ready and Full HD televisions.

 

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How to defend against most prevalent virus on the Internet

A priority for those who use the Internet is security. A recent survey by Trend Micro highlights the most common viruses in the network.

We have taken this poll by the virus spread and most dangerous. We explain how to recognize and delete them:

1) Troj_Agent.agsa

It is a Trojan that allows an attacker to take control of your computer. Is recognized by the sudden and unjustified delays in the PC.

2) Troj_Dloader.fxn

This virus is the most frequently infects the computer later because of visits to web sites created in order to spread computer viruses. Basically these sites that install viruses on PCs without our knowledge. The virus is activated every time the computer starts and dangerous jobs that take up space in memory. It difficult to recognize. We recommend you keep the security systems and to launch these applications frequently.

3) Pe_Mabezat.b-1

It is a virus that has a high destructive potential. Automatically installs some files on the PC that can block or damage the entire system with all its removable drives. This virus installed in the folder s hard disk its source file using random names. We acknowledge this by going to the Documents and Settings folder, if you have the file or hoo.dl_ tazebama.ddl, our computer is infected.

4) Mal_Onlieg

It is a Spyware, or a virus that will monitor what we do on our PC and transmits information to hackers who are attacking us. S the classic malware also used by those companies that we wrongly bombarded by spam advertising. Can also direct us during nevigazine on web pages are not required and can steal personal data. There is no way to notice the presence of this virus on our pc. Therefore it is advisable to keep both security systems and make frequent checks.

 

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Reset the PMU and solution for PowerBook G4 (12-inch) battery won't charge

Reset the PMU and solution for PowerBook G4 (12-inch) battery won't charge

The battery in my G4 Powerbook won't charge, and I am a long way from any technical help!

I recently received a replacement battery PowerBook G4. However, it seems the battery is faulty. I charged it fully for 16 hours but after the first 5 minutes of use the computer shutdown without warning. It would not restart on battery power. I have reset the PRAM and System Management, rebooted several times and the problem persists. Apple recalled batteries behaving in the same way a while ago and I believe my battery has the same fault. So I search in google and found the Apple reply :

There are some ways to reset the PMU. Have you tried them all?
PowerBook G4 (15-inch 1.67/1.5GHz), PowerBook G4 (17-inch 1.67GHz), PowerBook G4 (15-inch Double-Layer SD) and PowerBook G4 (17-inch Double-Layer SD)

1. If the computer is on, turn it off.
2. Disconnect the AC Adapter and remove the computer's Apple a1175 battery.
3. Press and hold down the power button for 5 seconds and then release the button.
4. Reconnect the Apple a1185 battery and AC Adapter.
5. Press the Power button to restart the computer.

If a Apple laptop battery is completely drained, it may not charge properly the next time you connect the computer's power adapter.

Products affected

* PowerBook G4 (12-inch)
* Mac OS X 10.2 through 10.2.3

Update the Mac OS X software:

1. Remove and reinsert the Apple Macbook Pro battery and try charging again.
2. Download and install Mac OS 10.2.4 or later. It is available from the Software Update preference pane, or from Apple Software Downloads (http://www.apple.com/swupdates/).

If the issue recurs after installing Mac OS X 10.2.4 or later, continue normal operation as the situation should resolve itself within a few minutes.