Camera Battery Blog

Notebook battery fully charge and discharge error

Notebook computer equipped with the original battery, after a period of time after use, there will inevitably be the case of standby time. Some users said: “depth with repeated charge-discharge method, be able to resume the performance of the battery, thereby extending the battery life.

To a correct understanding of this issue, start a notebook about the type of laptop battery used. As we all know, in 1995, before the production of notebook computers are basically used to power nickel-cadmium batteries. In the use of such batteries, if not the correct way of charging and discharging, the battery will have a “memory effect”, thereby reducing the battery’s actual capacity, the elimination of this “memory effect” is the best way to repeatedly charge and discharge depth manner. With the emergence of nickel-hydrogen batteries, battery capacity has improved significantly, but the “memory effect” did not completely eliminate the shortcomings.

In recent years, lithium-ion batteries in notebook computers has been rapidly increasing, largely as a result of lithium-ion batteries have been the elimination of the “memory effect” problem, it is used repeatedly to restore the depth of latitude D800 battery charge-discharge performance of the method is not applied. But why lithium-ion battery capacity or the will to reduce the problem? Have a fundamental reason for this situation is used in notebook computers and the original lithium-ion battery in the built-in battery management systems.

Battery Management: At present, in notebook computers, almost all adopted the “battery management” and “charge-discharge control” of two chip-level management systems. The “battery management chip” placed in the notebook computer itself, the chip registers in the memory of the computer used in the capacity of lithium-ion inspiron 8600 battery, operating temperature, ID serial number, charge-discharge state, the cumulative number of charge-discharge and other important information. In the use of these data, the need to constantly refresh the actual situation. The battery built-in “chip control charge and discharge” the most important role is to monitor and control the battery charge and discharge the entire process and be documented.

Charge: Lithium-ion rechargeable battery the whole process is divided into “fast charge constant-current” and “reduced charge constant current” two stages. The so-called “constant current fast charge” means charge has just begun, the charge current and charge voltage to follow a fixed battery terminal voltage gradually increased until they reach their nominal voltage of the charging method. When the inspiron 630m battery terminal voltage has reached the standard value, the controller will automatically turn into “reduced charge constant current” phase, when the charging voltage will no longer continue to rise, while the charge current to follow the battery capacity is rising gradually diminishing, and eventually reach zero, so they all completed a GK479 GD761 battery charging process.

At the same time, the charge generated by the process of charging voltage, current and time data curves will be recorded in the VGP-BPS5 battery’s “charge-discharge control chip” of the memory. “Battery management chip” is through access to th

ese data, calculated by the sample data such as battery capacity, which is, in Battery Information in numerical Wh read.

Fixed: After repeated charging and discharging the HP DV2000 battery after use, its built-in chip in the charge-discharge data will of course be changed. If at this time “battery management chip” has no chance to re-read the newer, more complete data, it calculated the battery capacity will not be accurate of course, to the user the feeling seems to be reducing the capacity of the Satellite A100 battery, and the fact that the actual capacity of the battery has not really reduced. Some bring their own brand of rechargeable laptop management software working principle, the process is in charge refresh “charge-discharge control chip” memory of the data, thus ensuring the “battery management chips,” the correctness of calculations.

A close look if you have the use of laptop manuals, will be found that “a month in the use of computer time, should make a full laptop battery charge and discharge operation” note. Its main purpose is to use the depth of charge and discharge the way to amend the charge and discharge control chip register data in the curve so that the battery charge control and battery nominal capacity and the actual situation, as a result the correct value of the battery capacity.

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Lenovo Thinkpad T400 : the advantage of T61

Advantages :

#1 based on the Centrino 2 platform

#2 the product to work outstanding performance

#3 the keyboard feel to maintain a high standard

#4 dual-card design

#5 good temperature control

Disadvantages:

#1 leading to the rear of the standard battery protruding

Started from the ThinkPad T61, Lenovo notebook speakers will be part of the design on both sides of the keyboard. ThinkPad T400 is the speaker continues the T61 design, design here can be more conducive to the spread of sound.

ThinkPad T400 in the search for the previous generation is really the difference between before the IBM T61 is not an easy thing, the first two products using the same mold completely. If you say that the difference between the two products, it can only say that the hardware configuration of the two products on the poor.

ThinkPad T400 Use Centrino 2 mobile technology, and T61 are based on the Santa Rosa, Santa Rosa Refresh platform, two generations of products which may be the only gap between the. In addition the first time, the introduction of dual-card switching ThinkPad T400. To the performance of business users more choice.

Interface design continues the ThinkPad T400’s design ThinkPad T61. We have received the ThinkPad T400 is equipped with a four-in-one card reader slot, IEE1394a interface. T400 in the provision of four-in-one card reader at the same time slot.

The original design of dual PC Card slot. T61 in accordance with the design before the next commercial version of the original ThinkPad T400 dual PC Card slot, providing a total of three locations optional combinations: PC Card / four-in-one card reader, ExpressCard / PC Card, PC Card / Smart Card.

ThinkPad T400 is a position in the notebook computer business applications. Product designers have the performance and battery life to make a balance. In order to ensure the battery life, T400 uses Core 2 Duo P8600 processor, this TDP processor processor T9×00 less than 10W. The 2.4GHz processor operating parameters including frequency, 3MB cache, 1066MHz FSB.

ThinkPad T400 comes standard with a 10.8V 5200 mAh Li-ion laptop battery and before the introduction of the T61 is fully consistent standard battery capacity. The battery life test, ThinkPad T400 is not particularly outstanding performance. One high-intensity office life 140 minutes for DVD playback test time 116 minutes. If we can not meet the needs of users, you can match a higher-capacity 9-cell battery.

First of all, in the design, ThinkPad T400 Thinkpad T500 full extension of the T61 design times, we can even upgrade to the Thinkpad T61 Centrino 2 platform to describe the T400. Of course, the T61 also has inherited the fine attributes, such as PC card slot design flexibility. Good feelings and so the use of.

As regards the change of the hardware configuration upgrade is the biggest change in this product. Time to upgrade the hardware configuration of the T400 has been the performance of a higher level to meet the higher intensity business computing. In addition the introduction of the first ThinkPad T400 Dual Card switching technology, allowing the series to life in high-performance and high-performance switch freely between.

Dell’s Latitude business notebook explain the new generation (E4 series, E5 series, E6 series)

Since 1995, Dell sold in the global market, the total number of business notebook computers than any other company. The new Latitude, Dell is the largest force in the history of R & D products, Dell and more than 4,000 IT experts and end-user communication, research, the results of cooperation. Let us take a look at the use of a variety of new technologies in the Dell Latitude E5400 notebook battery life, portability, security, and a breakthrough design which:

Super battery: Some systems use cells can be a total of 19 hours of life. In addition, our 6-cell and 9-cell Dell battery performance has been great progress.

Network Connection: include Wi-Fi (802.11n), mobile broadband options, WWAN, super broadband and Ultra-wideband Bluetooth 2.1. Overwhelmingly in support of WiMAX, the user can choose to install GPS.

Security features: non-contact smart cards, fingerprint readers, hardware-based disk password set, as well as the unique solution ControlVault. It is worth mentioning in particular ControlVault, through the intelligent security sub-processors with embedded memory stability, away from the system through the main drive of the “vault”, to help protect the user’s authorization code and security keys (as Studio XPS 15 battery) use this fingerprint).

Focus on software control: ControlPoint software allows you to achieve the power management, connectivity settings, as well as the integration of control of security settings.

Design: the introduction of a new design language. The whole structure of the use of magnesium alloy shell hub all-metal. Soon, in addition to the original mica metallic stripes, which business models will have blue, red and black for your choice. This is our first commercial launch of the notebook computer keyboard with smart backlight lamps, you can automatically adjust brightness according to environmental brightness backlight lamp.

In accordance with the needs of users, these products can be divided into three types, and now we look at each of these products, we can see the products in the Flickr photo above.

Portable - Dell Latitude E4200 is a 12.1 inches notebook computer, only a minimum of 2.2 pounds (about 1 kg), is the history of Dell’s lightest business notebook PC. Latitude E4300’s 13.3 inches minimum weight of 3.3 pounds (1.5 kg). Models in the series for those seeking high performance and light in one of the mobile business professionals and corporate management design, this series will be listed within the next few weeks, there are blue and red casings to choose from.

Standard, including LED backlight display, enabling a more compact body to support a longer battery time. Users can also choose non-contact smart cards, embedded camera can be adjusted automatically according to the environment of the backlight brightness of the keyboard and the next generation of solid-state drives SSD. Also worth mentioning is expected in the next few months, Latitude E4200 and E4300 will be will use the Dell Latitude ON, this new technology uses a dedicated low-voltage sub-processor and operating system, allowing users almost instant access to e-mail, calendar, attachments, contact information and web pages without having to restart the computer’s main operating system (OS) (also Studio XPS 13 battery use this OS), the life of up to several days.

Mainstream - Dell Latitude E6400 and E6500 notebooks, respectively, for the size of 14.1 inches and 15.4 inches, respectively From 9528 yuan and 9779 yuan. The series is like the pursuit of high-performance desktop computers and notebook users an ideal product. E6400/E6500 provided the first non-contact smart card and fingerprint reader, users can choose the keyboard backlighting, LED-backlit display, battery-chip, built-in camera, the next few weeks will provide a choice of blue and red shell.

Basic - Latitude E5400 battery is a minimum price of $1200 is only 14.1 inches notebook computer; Latitude E5500 battery is a minimum price of $1300 yuan is only 15.4 inches laptop. These two models listed today, they have day-to-day computer applications, the high cost-effective, and soon will provide housing options for black ink.

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The HP notebook Problems

Problems with faulty Nvidia graphics chips that caused large numbers of notebook computers to fail last year may not be over yet — at least for some.

Some HP users are complaining that their laptops, which were not included in the company’s official list of affected machines, are facing problems similar to what other users experienced last year.

“When I boot up my laptop, it says there’s no driver and I can’t install one. That means my machine locks up and shuts down,” says Dana Hight, a HP notebook user who runs a web development company. “It is clearly related to what happened with Nvidia chips last year.” Hight has bought his laptop about a year and half ago.

But he, along with other users in one of HP’s online support forums, say the company won’t recognize his laptop model as one of the versions affected by the faulty Nvidia chips. Hight has the DV9549US model. HP did not respond to a request for comment about the complaints. Now Lenovo update its ThinkPad X200 to solve this probelm.

Last year many consumers saw notebooks and desktops PCs that refused to boot up, did not detect wireless networks or offer any video on the monitor. HP acknowledged problems with about 38 desktops and 14 notebook models, Pavilion DV5 battery. In October, 2008, HP issued BIOS fixes and a limited extended warranty for these machines. Nvidia has said a problem with the packaging material for some of its chipsets led to the high failure rates. Dell and Apple also reported problems with Nvidia chips in 2008.

But Hight and other users in HP’s forums complain that their notebook models from the dv95xx series are facing similar issues.

“About two months ago I started noticing flickering and the system locking up, shutting down and rebooting,” says Hight. “It started getting worse but HP told me their technicians are not aware of anything with my chipset for HP newest notebook Pavilion DV7.

Hight, who had bought extended warranty with the now bankrupt Circuit City says he has two options: to pay up to $400 to get a new motherboard, but with the same chipset from Nvidia; or buy a new machine that will cost hundreds of dollars.

A quick look through a thread on one of HP’s online support forums reveals similar complaints. HP technicians, say the users online, will not acknowledge their problems as being related to the bad Nvidia chips.

HP has not responded to Wired.com’s request for comment. Pavilion DV4 battery

Hight says HP should step up and replace the faulty laptops instead of offering piecemeal fixes. “I would expect HP to give us a solution,” says Hight. “Why should users who paid $800 to get a HP laptop have to pay now because they got a bad machine?”

The article is from http://blog.wired.com/

Dell inspiron 6400 laptop battery

• 85 WHr capacity inspiron 6400 battery lets you work seamlessly while on the move
• Provides very safe charging and discharging
• Offers reliable power for dependable performance

Overview

Always on the go? No more worries about running out of battery power! You can back up your system with this 9-Cell Lithium-Ion Primary Battery from Dell™. With a capacity of up to 85 WHr, the battery lets you work seamlessly when you are on the move for business trips or vacations. It provides uninterrupted long life and consistently reliable performance you need to get the most out of your system. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system.

Tech Specs: General

Device Type: inspiron 6400 Notebook battery

Battery Enclosure Type: Internal

Dimension : 8.1*2.4*0.9

Weight: 17 oz

Technology: 9-cell lithium ion

Voltage Provided: 11.1 V

Capacity: 85 Wh

Max Recharge Cycles: 500

Customer review:

Like so many others, I am completely dissatisfied with the price/performance of this battery. At 1.5 years old, it will no longer provide any usable life. $200 for a replacement is way out of line. But this is a “portable” computer after all, so I will have to hand over the cash for a new battery. I will certainly look at alternatives next time I’m in the market for a laptop.
Dell really needs to step up and address this problem. For a company that built its reputation on quality products and customer support - it is totally lacking here. If the short battery life can’t be fixed, how about a discounted trade in policy so owners won’t feel like they are being cheated.

For only 500 theoretical cycles, this battery should be much cheaper. I took very good care of it (took it out when it was charged, and I was using AC) and it still only lasted about 2 years.

Dell Part# : 312-0428

Fits for : Dell Inspiron e1505, Dell inspiron 6400, Vostro 1000, Inspiron 1501

MacBook Pro features compare

As we all know, apple produce the three Macbook Pro notebook : Macbook Pro 13″, Macbook Pro 13″, Macbook Pro 17″. They are named for their LCD screen width, but they are not only differ by LCD screen width but also have their own feartures. Now let me introduce the features of each Macbook Pro notebook. Specially need to know this the Macbook Pro 13″ is the newst notebook of Macbook series.

Apple 13-inch Macbook features

Precision aluminum unibody enclosure.

Machined from a solid piece of aluminum, the new MacBook not only looks stunning, it’s also thinner, lighter, greener, and more powerful than ever. Also we call it Apple Macbook Pro 13″.

LED-backlit display

The ultrathin 1280-by-800-pixel LED-backlit display shows off your digital media perfectly. And it’s as easy on the environment as it is on the eyes: The gorgeous glass and aluminum enclosure is arsenic- and mercury-free, and LED technology makes it more power efficient.

Advanced NVIDIA integrated graphics

Experience the most powerful MacBook graphics ever. With a new NVIDIA GeForce 9400M processor, the new MacBook delivers up to 5x more graphics performance, so you can immerse yourself in lifelike 3D games.

All-new, smooth glass Multi-Touch trackpad

It’s redesigned with even more room for even more gestures. Now the entire glass trackpad is also the button, so it’s clickable everywhere.

Apple 15-inch Macbook features

Precision aluminium. The new gold standard
Carved from a single block of aluminium, the new MacBook Pro unibody enclosure is slim and streamlined with a soft-brushed surface and stunning contours.

Brilliant brilliance.

The moment you open your MacBook Pro you’re greeted by glorious, full screen brightness. But that’s only one gleaming quality of the glossy LED-backlit widescreen display. The picture is brilliant and sharp from corner to corner.

Graphics in full force

The new MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion.

Even the keyboard is advanced

The Apple Macbook Pro 15″ rigid aluminium keyboard webbing has been cut precisely to hold the keys. And the keys are curved to perfectly fit fingers.

Apple 17-inch Macbook features

The longest-lasting Mac notebook battery ever

The Apple Macbook Pro 17 battery in the new 17-inch MacBook Pro lasts up to 8 hours on a single charge1 and can be recharged up to 1000 times2 — compared with only 200 to 300 times for typical notebooks. Combined, these advancements offer a dramatic improvement in battery lifespan: more than three times the lifespan of typical notebook batteries — up to five years.

2.3 million pixels of perfection

With the high-resolution LED-backlit widescreen display on the 17-inch MacBook Pro, you get desktop-quality colour in an Apple notebook for the first time. The moment you open your MacBook Pro, you’re greeted instantly by full, corner-to-corner screen brightness. The 1920-by-1200-pixel resolution (133 pixels per inch) means you can view more palettes and windows or watch HD video in its native 1920-by-1080 resolution.

Graphics in full force.

The MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion. Use the new NVIDIA GeForce 9400M integrated graphics processor for great everyday performance with up to 8 hours of battery life.

Precision aluminium. The new gold standard.

Carved from a single block of aluminium, the new unibody enclosure is slim and streamlined, making this MacBook Pro the world’s thinnest and lightest 17-inch notebook — just 0.98 inch thin and 6.6 pounds. But it’s not just for looks.

Now we know the Macbook Pro series laptop are Precision aluminium and pretty interface, whats the difference between them?

All the data are from : Apple.com

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Thinkpad T61 : update to the T60

ThinkPad T61 and the ThinkPad R61 are the Lenovo Centrino laptops. They are so similar that you cant differ them only by their physical desigh. The thinkpad T61 is the update of Thinkpad T60: 14-inch models include all the important parts of Intel’s revamped Centrino platform, including new Core 2 Duo CPUs, extra onboard Turbo Memory (for boosting access times), and 802.11n Wi-Fi.

The ThinkPad T61 continues the T-Series tradition of being thin and light enough to carry around with you all day - 336 x 237 x 28mm (WxDxH) and 2.3kg - but still maintaining a decent size screen and keyboard. In fact, whenever I’ve been asked what my favourite ThinkPad model is, I’ve always been torn between the T-Series and X-Series, with the latter being smaller and lighter, but also less feature packed.

Specs

• Processor: Intel T7300 Core 2 Duo (2.0GHz, 800MHz FSB, 4MB Cache)
• Graphics: Intel GMA X3100
• Operating System: Windows Vista Business
• Display: WXGA+ 1440 x 900 (LG screen)
• Hard Drive: 100GB 7200RPM (Seagate Momentus 7200.1)
• Memory: 2GB (1GB x 1GB), up to 4GB max
• Ports: 3 USB 2.0, 1 FireWire, Monitor out, modem, Ethernet, headphone out, microphone in
• Slots: 1 PC Card Slot, 1 ExpressCard slot (optional media card reader and Smart Card reader)
• Optical Drive: Ultra-slim Super-Multi Drive
• Dimensions: 13.2″ x 9.3″ x 1.09 - 1.26″ (335mm x 237mm x 27.6 - 31.9mm)
• Weight: 5.1lbs
• Battery : Thinkpad T61 battery 6 cell.

The new CPUs from Intel, including the T7300 in the ThinkPad T61, all include some power saving and performance boosting features. One feature is called Enhanced Dynamic Acceleration, which will power down one core of the CPU when it’s not needed, and use some of the power saved to boost the still-active core, giving it more speed. On top of that the FSB has been increased from 667MHz to 800MHz, providing more bandwidth and faster communication between the CPU, the memory and the chipset.

New switchable graphics, LCD backlit displays, and DisplayPort technology features give you superior graphics performance on your ThinkPad T Series notebook. Experience brighter, crisper colors and lower power consumption life with the new LED backlit displays on the ThinkPad T Series. These new displays are bright without sacrificing battery life, with 25% brighter displays and using 2W less power than conventional CCFL displays. These high-resolution displays also contribute to the thin and light design of ThinkPad T Series notebooks, weighing 70 grams lighter than conventional displays. Users who travel frequently will appreciate the wide dimming range of the LED backlit display. This allows you to reduce brightness while still experiencing a crisp, comfortable display in dim environments such as an aircraft cabin. Finally, to protect the environment, our LED backlit displays are mercury-free.

One major feature the Centrino Pro ThinkPad T61 has over the Centrino Duo R61 is the inclusion of Intel’s Active Management Technology. You get a faster processor front side bus (800MHz), more processor cache (4MB) and an improved integrated graphics solution in the form of the Intel X3100. If all that talk is nonsense to you, then suffice it to say the T61 offers newer and better processing components than the T60.

Battery Life : Thinkpad T61 battery is 6-Cell battery. It can last about 2 hours 15 minutes, check the reduce screen refresh option and you can gain a couple of minutes of battery life, and the interface will show you that approximation. But you d better buy a cheap thinkpad T61 battery replacement in www.laptops-battery.co.uk. The Thinkpad T61 battery also fits for thinkpad R61.

Compare with the prev Thinkpad T Series laptop, The T61 has following advantage

• LED backlit, mercury-free displays
• Dual-core processors consume 10% less power than standard-voltage processors
• 25% cooler and quieter than previous T Series
• Switchable graphics feature uses 15% less power than previous T Series
• SSD drives use 90% less power than standard hard drives
• Low-wattage processor technology (25 watt processors)
• Battery Stretch feature extends battery life and reduces waste
• Reusable packaging is designed for minimum 5 reuses
• Energy Calculator enables you to calculate power savings for your system configuration

In all the ThinkPad T61 Widescreen is the latest in Lenovo’s ThinkPad T-series of world-class laptops that have stood the test of time among corporate professionals. But the transition is now complete - the T61 is the first ThinkPad in PC Pro not to feature the IBM logo at all - and we’re relieved to say that the ThinkPad range is none the worse for it.

If you want to buy a t61 please visit Lenovo.com first.