Notebook battery review

The Newest battery in Discount laptop battery UK online shop

The newest and cheapest battery is coming. Now the Discount-laptop-battery.co.uk promote some discount laptop battery between July 30 - September 30. These batteries price are 25% discount. The batteries are for the newest main brand notebook and netbook. Now let me list these batteries for our customers.

Acer: Since the software on every Mac is created by the same company that makes the Mac itself, you get a completely integrated computer?that’s as secure, stable, and powerful as it is elegant and?easy to use.Now acer produce a thinnest point the Aspire Timeline is just 24mm thick (less than one inch), rising just 5 mm at its highest.There is a long-standing principle that the very best designs emerge when form follows function. The Acer Aspire Timeline is proof that this is still true.We are sorry for that we dont supply any discount for the acer aspire one , but we reduce the popular BTP-44A3, BTP-58A1, BTP-59A1, BTP-60A1 battery price.

Apple : Since the software on every Mac is created by the same company that makes the Mac itself, you get a completely integrated computer that’s as secure, stable, and powerful as it is elegant and easy to use. We now produce the newest Apple A1012, A1060 A1148 for our customers.

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IBM & Lenovo : Ideal for home, home office, school and everywhere in between. Quality built and nicely equipped with the latest technology and cool features. Find laptops designed for school, home, photos, gaming, videos and more. So we list the Lenovo battery for you : 40Y7001, 40Y7003, 40Y6999 and ThinkPad X61s battery, ThinkPad R51 battery, thinkpad R52 battery, ThinkPad T60p battery, ThinkPad R60e battery are the newest coupon battery.

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Compaq & HP: Laptops to suit any budget. The Lenovo value line offers well-equipped, smartly designed notebooks for your business, home or home office. Get everything you need for reliable, secure mobile computing—at the right price. Now we supply the best replacement battery for our customers as 338794-001, 361742-001, 371785-001, 372772-001, 398876-001, 417066-001, F2024B, PB992A, PB994A, EVO N410c battery, EVO N410 battery, Evo N600 battery, Evo N600C battery , Evo N610C battery , Evo N620C battery .

How to Open a Laptop Battery & Replace the Lithium Ion

Laptop batteries, like all rechargeable battery packs, lose their charging capacity over time. Because new laptop batteries are expensive, replacing the individual cells inside the battery casing can save a lot of money. However, rebuilding a battery sometimes does not work as expected, so it’s important to be willing to purchase a new laptop battery if the procedure fails.

1. Allow the laptop battery to run down completely. Turn off your laptop, then remove the battery. Write down the model number located on your Latitude D800 battery to help identify the type of Li-ion replacement cells you need to purchase.

2. Split open a small section of the Latitude D800 battery pack (at the seam) with a screwdriver or craft knife. Continue to pry the plastic case loose moving around the outer edge until the entire top is free. This may take a bit of force.

3. Note the number of cells inside the case (usually four to eight). Write down the part number and voltage information printed on the Toshiba PA3107U-1BRS cell casings. Draw a diagram showing the arrangement of the cells and how they are connected, or take a few photos to help with reassembly.

4. Purchase the correct number and type replacement batteries from a local or online dealer, based on your battery model and cell specifications. Six Li-ion cells typically cost around $30 to $40.

5. Carefully remove each cell using a craft knife and wire cutters as necessary. Each Toshiba PA2487U battery pack is different, but the cells are usually wrapped in a plastic casing with metal contacts attached to one end. Lay the metal contacts, wires and casing material aside.

6. Use double-sided tape or a solder gun (only if necessary) to attach the metal contacts to the cells and circuit board. When finished, the old cells should be completely stripped (naked) and the new cells should look like the old ones as much as possible.

7. Place the new Discount laptop battery cells inside the case, referring to your diagram or photos if necessary. Glue the battery pack top back on. Charge the new battery for at least 24 hours before using it.

Keep an eye on the new battery while it charges for the first time. If the contacts are not connected properly, the battery could overheat and cause damage to the laptop.

 

Linux, power management and laptop battery life

Ever since I’ve got new laptop last November, I was quite unhappy with its battery life. Initially it used to keep computer running for around 2.5 hours with usual workload (mail/www/docs), while Dell advertised up to 5 hours of work with that particular 6-cell battery model. After some time battery lost ~40% of its original capacity without any particular reason, and could hardly manage to get 1.5 hours of work away from AC adapter. Fortunately, Dell’s technical support arranged battery replacement. But new battery’s performance wasn’t much better (2-2.5 hours), so I’ve managed to get… another replacement. This time I’ve decided to investigate in details what is actually standing behind laptop’s battery life.

I’ve been investigating topic of power management and laptop battery life for around 3-4 weeks, running also detailed battery tests with total of two laptops and three batteries. I found out a few interesting conclusions, so hopefully this article would be helpful for some of you.

Power management useful tools

Gnome Power Manager

This tool itself is not much interesting in terms of power managing, actually. However, it has pretty nice statistic features and displays detailed battery information, which could tell a lot about your battery, and maybe even explain problems causing its poor performance.

One of the most important things here is Capacity. It tells how much your battery’s capacity is degraded. In my case, original capacity of battery is 56.6W(atts), while last full charge was 54.7W, which is ~96% of designed capacity. Basically, less capacity discount laptop battery means worse performance. Another interesting bits, are Charge rates, which are telling how much power is your computer consuming at the moment. Less is better, obviously. History of power consumption is nicely presented in Power History tab.

It’s quite clear now that getting to know better with GPM is very helpful in determining possible problems with power management on your machine.

Laptop Mode

Let me use an introduction from Laptop Mode homepage:

Laptop Mode Tools is a laptop power saving package for Linux systems. It allows you to extend the battery life of your laptop, in several ways. It is the primary way to enable the Laptop Mode feature of the Linux kernel, which lets your hard drive spin down. In addition, it allows you to tweak a number of other power-related settings using a simple configuration file.

Basically, Laptop Mode is designed to manage HDD power (and also do some other stuff), while system is running on Dell laptop battery power. Hard disks are usually computer’s one of the most power-hungry devices, so spinning it down while it’s not actually needed, would probably have pretty much impact on battery’s better performance. Laptop Mode installation is pretty straightforward, especially withRPM packages>. Configuring LM is also simple, as its configuration file located in /etc/laptop_mode/laptop_mode.conf is full of instructions and tips, which makes whole configuration a lot easier. I’d also recommend to have a look into pretty extensive FAQ, which covers most common problems.

Before configuring LM you need to be ready for some experiments. Various hard drives have various features which may, or may not be totally compatible with LM’s features. Basically, it would probably take a few tries before a ‘perfect set’ is found. However, LM takes care not only about hard drives - it also allow to control CPU frequencies and governors, or laptop (PA2487U PA3107U-1BRS)’s screen - to put it in other words: LM is quite useful set of tools, helping to get most of power management on your Linux system.

Things affecting battery life

Before you start complaining about disgraceful battery life in your laptop, think about things which could eat the most of battery power. By ‘things’ I mean computer’s built-in devices and features. Let’s see:

Screen backlight

Keep it dimmed as much as possible, and turn it down (i.e. close a lid) while you’re away. It really eats a lot of power.

Wireless devices

WiFi adapters, Bluetooth dongles, built-in mobile/cellular cards. Switch all of those off, if you don’t need it. You will feel the difference. Guaranteed.

CPU, hard drive

You cannot switch CPU or HDD totally off, but you can set CPU to lock frequency at minimum level while running on battery power. I was really surprised to see how high power consumption jumps up while CPU is running at full speed. HDD could also go to sleep while not needed. Did I mention Laptop Mode tools to check 40Y6795 40Y6797 40Y6799?

Dedicated video adapter

Having fancy nVidia or ATI dedicated video adapters, instead of cheap onboard ones, might be cool (especially with desktop-effects to show off), but bear in mind these are extra devices with GPUs, which also like to eat a lot of protons and electrons…

Externals

All external USB/Firewire/PC Card/etc. devices are also taking significant part in raising demand for power. If you like to keep external memory card reader or hard disk connected via USB 24/7, maybe it’s good time to stop liking that idea?

Internals

Enter BIOS and go through each screen, switching off all internal devices which you don’t need. These might be something like internal modem, IR port, serial/parallel ports, etc. You can be seriously surprised how all these things are adding up in total power consumption. I was, at least.

Software

Compiling kernel while computer’s running on battery, would not help save the most of it. Same with watching films, playing games, etc. Not touching computer at all would be probably the best idea.

Battery testing results

As I mentioned at the beginning, I’ve been running several battery tests for a few weeks, using two different laptops. Tests were basically based on some certain conditions, while which I have been manually measuring and comparing time with percentage of battery level.

Machine: Dell Latitude D620 battery

Battery: 6-cell ‘old’ (before 2nd replacement) - designed capacity: 56W; current capacity: ~88%

This battery was giving me really poor performance and actually made me start to investigate power management issues more closely. Under typical workload, with wireless on, backlight set to 3/8, it used to eat around 0.8-0.9% of battery capacity level per minute, which counts into merely 110-120 minutes (~2h) of total life. That’s damn far from up to 5 hours, isn’t it? However, I’ve been able to get down to ~0.7% / min and ~2h30m after switching wireless off, enabling Laptop Mode, and locking CPUs down to 1 GHz. However, still far from ideal, so I’ve decided to get battery replacement from Dell.

BTW, initially I thought desktop-effects are having much impact on battery, however my test showed I was wrong. Relation between battery life and desktop-effects was marginal.

Machine: Dell Latitude D620 battery

Battery: 6-cell ‘new’ - designed capacity: 56W; current capacity: ~96%

The reason why new battery has already 4% degradation of capacity is probably because I’ve screwed up its very first charge, by unplugging AC adapter before it has been totally charged. Anyway, first test showed that new battery is far better than the old one. Even with wireless switched on and connected, LM enabled, backlight 3/8 I’m getting around ~0.6% / min, which is great improvement comparing with ‘old’ battery. However, to be honest, it’s still a little bit below expected at least 3 hours of work away from AC adapter.

Machine: Dell Inspiron 640m

Battery: 6-cell original - designed ca

Battery Grips for DSLRS

I recently made a fairly significant addition to my digital camera kit - a Canon EOS 5D. Ever since I’d tested the camera for a few weeks last year I had been dreaming of getting one of my own (and saving my pennies) so when I had enough money saved up I grabbed one.

Also rounding out the purchase was a new Flash and a Battery Grip.

While I thought long and hard about buying the camera body and the new flash the Battery Grip was something of an impulse buy. I’d previously always invested any spare money into new lenses and hadn’t thought about a battery grip - but there was an option to throw in the grip (and an extra battery) for only a little extra and so I decided to give it a go - thinking that I’d probably only use it if photographing an event like a wedding.

Having had the new camera, flash and grip for a six weeks not I can honestly say that I’m extremely pleased with each of the purchases. The 5D is a dream to use. My only complaint is the slower frame rate in burst mode. I’m also loving the ability to go extra wide with my 17-40mm lens now that I have a full frame camera. I’m also starting to wonder if I should buy a lens with a longer range than 200mm (as it has less impact on the full frame sensor than it had on my old 20D). I’m also loving the flash - it’s producing some great results and now I have the ability to set it up in a slave setup with my old flash I’ve been experimenting with some interesting lighting for portraits.

So the 5D and EOS 300D battery grip the new flash are great - but what has surprised me most is that I am really loving the battery grip. In fact instead of just attaching it to my camera for special events, I’m finding that I’m using it all the time.

My wife thinks I do it because it makes my camera bigger (and boys like to have big things - hmmm…. that didn’t quite come out right) and that I’m just showing off. Perhaps she’s got something there, it does make the camera look more professional - however I there’s a few other reasons that I love my new BG-E2N battery grip:

1. More Power - two batteries instead of one means recharging half as much. I find that Canon DSLRs have pretty good battery life at the best of times but after a couple of weeks of medium use-age shooting with the 5D I realized that I’d not had to recharge once (a new record for me). It was also great when shooting my son’s birthday party last week. No hunting for and changing batteries at key moments!

2. Second Shutter Release Button - I knew the Canon BG-E3 battery grip had a second shutter button and setting dial but didn’t realize how much I’d use it in my photography when shooting in portrait mode. It’s not that I ever found shooting in portrait mode difficult before - but this is so much easier (or am I just imagining things?)

3. Weight and Balance - two batteries weigh more than one and the grip itself adds a little weight and size to the camera. While this could be seen as a disadvantage (and I’m sure it would be in some circumstances) I really love it. I feel like the camera is sitting well in my hand and that I’m somehow more solid when taking shots. I’ve read people argue about battery grips helping combat camera shake and previously didn’t see how something heavier in a hand would help - but again I ‘feel’ like there might be some truth to the argument.

The only real downside of the BG-E5 battery grip is that while the extra weight and size feels good, it could get a little tiring - quite literally. I did shoot with my 70-200mm f/2.8 IS lens for a few hours last week. It’s not a light lens and with the extra weight of the 5D (as compared to the smaller and lighter 20D) plus the weight and size of the battery grip I did feel like I was lugging around something pretty significant.

The article is from : http://digital-photography-school.com/battery-grips-for-dslrs

HP website : Steps to maximize the life of your battery

There are actions you can take to make your battery last longer during each charge cycle and live longer over many cycles. HP laptop battery always recommends following the instructions for charging and storage that came with the battery or notebook. On this page we offer additional suggestions to help you get the most from your portable power supply.

Manage battery power more effectively in Windows

Make sure your battery gives the power you need, when you need it. Power Options in Windows XP allow you to control the power management features of your notebook PC.

Learn more about the Power Options in Windows by visiting Microsoft’s support site: http://www.microsoft.com/windowsxp/using/setup/learnmore/russel_02march35.mspx

Tips for conserving battery power on notebook PCs

You can manually change the power consumption of your notebook PC and conserve HP 510 battery power.

• Reduce the brightness of the screen to the minimum readable level. Use the Fn and F7 or F8 keys to adjust the brightness.
• Remove peripherals when not in use. External hard drives, CD-ROMs, Zip drives, PC cards, and other peripheral devices can draw power from your battery even when they are not in active use. Disconnect them when you have finished using them.
• Reduce the speed of your processor. The faster your computer works, the more quickly it uses up the supply of power. By cutting down on processor speed, you can extend the charge of your battery. Methods to reduce processor speed vary from model to model, and your manual should provide instructions for doing so.
• Turn off the Wireless On-Off button when it is not in use. If your notebook has one, press the Wireless On-Off button so that the light turns off.

Battery care practices

HP 530 Battery cells suffer gradual, irreversible capacity loss over time. Such aging occurs more rapidly as temperature and discharge loads increase. Here are some suggested ways to minimize the capacity loss for your battery.

• Store Li-Ion batteries between 20°C and 25°C (68°F and 77°F) with 30% to 50% charge.
• Do not leave batteries exposed to high temperatures for extended periods. Prolonged exposure to heat (for example, inside a hot car) will accelerate the deterioration of Li-Ion cells.
• Remove the battery if the notebook will be stored (turned off and not plugged into AC power) for more than 2 weeks.
• Remove the Pavilion DV2000 battery if the notebook will be plugged into AC power continuously (via a wall adapter or docking station) for more than 2 weeks.

Note: Recommendations for battery use and storage are covered in the HP User Guides for each model.

Calibrate the notebook PC battery

Short discharges and recharges do not fully synchronize the battery’s fuel gauge with the battery’s state-of-charge. This can result in the amount of power available in one cycle being less than expected or the laptop battery meter being inaccurate.

Under normal usage, batteries should be calibrated a minimum of once every 3 months. Your battery can be calibrated by following these steps:

Step 1 - Disable the Windows Power Management

r scheme, select Never in each of the drop down menus.
• Click OK on the Power Options P
• In Windows, right-click the Desktop and select Properties in the menu list.
• Click the Screen Saver tab and then click the Pavilion DV5 battery Power button.
• Under Power schemes, select Always On in the drop down menu.
• Under Settings for Always On poweroperties window and then click OK on the Display Properties window.

Step 2 - Fully charge the battery

• Connect the AC adapter to the notebook.
• Charge the battery until the Windows battery meter is at 100%.

Step 3 - Fully discharge the battery

• Remove the AC adapter.
• Keep the notebook on until the HP 2133 battery has completely drained and the notebook automatically turns off.
• Connect the AC adapter to the notebook.
• Keep the AC adapter connected to the notebook until the battery has completely charged.

Step 4 - Enable the Windows Power Management

• In Windows, right-click the Desktop and select Properties in the menu list.

Click the Screen Saver tab and then click the Power button.

Under Power schemes, select Portable/Laptop in the drop down menu.

Click OK on the Power Options Properties window and then click OK on the Display Properties window.

Note: After completing the steps above, your notebook PC battery will be calibrated.

The article is from : HP.com

How to replace battery cells inside laptop battery

In the last article, we have introduced “how to hack dead laptop battery” to our readers, but it is too simple. Now we write a detail article about ” how to replace battery cells inside laptop battery”.

At present, there are many articles about “how to purchase and use laptop battery” on the network , but there are too less article about “how to repaire laptop battery”. For this reason, we decided to write a article about,laptop battery repair industry to help notebook users know what to do when laptop battery broken.

To notebook the battery is very important as the mobile work. The notebook become to desktop without laptop battery. There are battery cells and protection board in laptop battery inside. The batteries cells supply the power and the proctection panels protect the board safety when charging. Battery cells are consumable items, the capacity reduce in each using, which directly determine the quality of notebook batteries.

Notebook battery life short suddenly , cant work, laptop battery down suddenly (such as: battery capactiy suddenly reduce from 40% to 10% when working), laptop battery cant be fully charged,notebook battery cant be fully discharged (the notebook closed when the battery power state in 40% or more), the above cases may be caused by batteries capacity declining or batteries cells damage. Of course, there may be due to damage of the protection board, but this possibility is very small.

laptop battery cells

If you find that above failure happened to your notebook, it is necessary to check your laptop battery in laptop battery maintenance business. Now, let me introduce the whole process of laptop battery cells changing (for example Thinkpad T40 battery) .
First, we use professional equipment to detect the cause of the malfunction. There are many types equipment of Battery Fault Detection, such as: Texas Instruments products, MAX products, Ateml products, and even some personal home-made products. Most we use the commonly Texas Instruments (Texas) EV2300

Use professional equipment and related software to detect the cause of the malfunction

Battery Fault Detection

Texas Instruments EV2300

Once detected 92P1101 battery cells faulty , we are prepare to change the batteries cells for notebook battery.

Before the battery cells changing, We would like to tell you about the structure of the notebook battery.

The 92P1102 laptop battery are made up of three parts: batetry shell, battery cells and protection board.

In general, notebook battery can be divided into three parts: the shell, batteries and protection board。

Battery shell

Battery shell. That is notebook battery casing. There are different three types: type, ultrasonic bonding and adhesive bonding type.

08K8193 Batteries cell

Batteries cells group, that is, combination the batteries cells together in parallel and series connection. In accordance with the parallel, in series of different combinations can be divided into: 2 parallel and 3 serial connection (the most common), 2 parallel and 4 serial, 2 parallel and 2 serial, 3 serial and 3 parallel and 3 parallel and 4 serial (relatively rare).

Protection panel

Protection board, which is based on an agreement SMB1.1 circuit board, with power management functions and charge-discharge management.
Protection board, which is based on an agreement SMB1.1 circuit board. There are three chips on it : battery Measurement management chip, charge and discharge management chip and serial EEPROM memory chips

08K8192 Protection board

On positive plate : measuring management chip and charge-discharge management chip

The plate back has a serial EEPROM memory chips

Decrypt and unlock the protection board are two different works. Before you go into the battery management system you must decrypt the protection board, unlock the battery management system in order to change the parameters of the battery and use of information. If you only change batteries cells without unlock, you can not achieve satisfactory results (for example: the battery can only charge to the state “the last full charge capacity”, the battery maintenance management information will be displayed the charged number)
We use professional equipment and related software to unlock and decrypt the protection board. Of course, you must choose the appropriate equipment by 92P1087 battery management chip design.

use professional equipment and related software to unlock and decrypt the protection board

choose the appropriate equipment by battery management chip design

related software for unlock and decrypt the protection board

Programmer

If the protection board hardware damaged , we would also use oscilloscope, multimeter and logic analyzer

oscilloscope, multimeter

logic analyzer

After the deal with the batteries protection board , let me introduce the method to choose the right cells. We must use sub-meter cabinet and the internal resistance to check batteries capacity resistance, separation voltage, select out all specs of parameters for comparison with similar groups. Also the thinkpad R50 battery
thinkpad T41 battery
thinkpad T42 battery
thinkpad T43 battery is the same battery cells.

Sub-capacity cabinet

Sub-capacity cabinet manage software

Select the similar cells to make a battery group

Then we will use the spot-welding and Nickel sheet to joint the batteries cells together.

spot-welding

use the spot-welding and nickel films to joint the 92P1011 batteries cells together

The Nickel sheet we use are designed in round corner

round corner and straight angle Nickel sheet

After unlock and decrypt the protection board, connect the battery cells group. We can assemble the shell protection board and cells together.

assemble the shell protection board and cells together

During the assemble, you must take high attention. The steps is also suitable for IBM 40Y6795
40Y6797 40Y6799

After doing the above steps, the battery cells changing is compeleted. The repaired battery quality is the new battery in most function, so you must calibrate it first. Generally, you should fully charged in 1o hours then full discharge it 2-3 times.

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Notebook battery Power saving techniques

In fact, how to make good use of Laptop battery, how to extend the laptop battery using time and life is problem for all notebook users, a problem. There are many laptop battery using tips in our daily life that we shoule know in normal use and application.

(A) quick to enter the dormant state

Do not use the notebook computer for saving latitude D820 battery power, we can set the power management program, let the system enter hibernation after a period of time, but it must wait a few minutes, is there a way to make the notebook computer system enter the sleep state immediately ?

There is a dormant easiest way in Notebook computer system : directly turn off the screen, you can make laptop to sleep immediately and effectively conserve battery power. When you need to use the laptop, only opening screen, the system will automatically return to the state before the operation.

(B) power-saving screen mode

Laptop TFT screen is the largest component of power consumption, in order to reduce power consumption, notebook computer manufacturers have devised ingenious schemes, in all the general advise are following tips: reduce the screen brightness, turn off the screen.

In some notebook power management as 40Y6795 40Y6797 40Y6799 settings to customize the brightness of the screen, the majority of notebook computers by a specific shortcut screen brightness adjustment, generally 6 to 8 level brightness adjustment.

(C) Carry out energy-saving settings

As desktop using the AC, most people may not take attention to energy-saving features, but to laptop user who must use Discount laptop battery for mobile use, the use of energy-saving features should be important. How to design computer hardware more energy-efficient, this is not a user problem. All us can do is set up the effective use of energy-saving options on the computer.

There are two energy-saving settings need to adjust the user: First, in the computer’s BIOS setup program on the energy-saving mode in the settings; the most important thing is there are many in the operating system and operation of energy-saving settings. Computer system in the practical implementation of it, Windows system should take precedence over energy-saving settings in the CMOS settings.

1. BIOS settings of the energy-saving

In the CMOS settings,for example PCGA-BP2V PCGA-BP4V have a large “Power Savings”, which can choose to “Maximum Battery Life” and “Maximum Performance” and many other options. “Maximum Battery Life” is the default setting of the energy-saving mode. Notebook computer model has several energy-saving state, such as the Idle Mode Idle Mode, Standby Mode standby (wait) mode, Suspend Mode flying (sleep) mode. Notebook computer these settings, are able to regulate power consumption, mainly in the computer to enter the energy-saving state, the timely closure of the system without the use of equipment.

Such as when waiting to close the display and hard disk; dormant, apart from the display and hard drive shut down, but also can save the contents of memory to the hard disk, the basic maintenance of the entire computer system shut down state, once activated, or restart your computer, desktop will be accurately restored to pre-hibernation state. Energy Saving in the CMOS settings, set up mainly to enter the Idle Mode from Standby Mode in Standby Timeout time set by the Suspend Mode to enter the Standby Mode of the time Suspend Timeout. Notebook Phoenix BIOS of most use. Different energy-saving BIOS settings may be somewhat different, we should carefully read the screen prompts.

2. Windows in the energy-saving settings

For general users, in the Windows system management for energy conservation may be a better understanding of the operation simpler. Windows help file, in the “management hardware and software” under the entry, two notebook computers with the contents of the relevant energy-saving: “the management of energy consumption” and “the use of portable machine” in the “management of the power portable machine.” Energy-saving settings in Windows, should read it.

In the Windows “Control Panel”, click “Power Management”, you can open the “Power Management Properties” dialog box. In the “Power Management Properties” dialog box, should be “power scheme” is set to “portable / laptop” (Using 92P1101 92P1102 08K8193 08K8192 92P1087 92P1011 battery) and reasonable arrangement “system waiting for”, “close the Monitor,” “turn off hard disk” option, etc. . Different computer can control the options there will be some differences, the new factory and the latest computer software will be more workable options and detailed computer settings should be based on their functions and help files for Windows.

In addition, if your notebook computer with built-infrared port, close it when not in use, you can extend notebook battery life.

New battery can not be fully-charged

Generally the new battery can 100% fully discharge-charge. Last month I buy a latitude d820 battery replacement, as my work dont need to take the notebook out, so I use the notebook with the AC adapter and I store the battery in my drawer. Last Friday, I want to visite my customer with my notebook and show some business projects. So I charged my battery for a whole night, but I only see my battery 70% capacity state charged next morning. My battery is really new, why it can not be 100% charged?

So I query the battery expert Jack Smith that the reason “Why new battery can not be fully charged?”. He said that : after the laptop battery not use for a long time, the battery charge must in the low current in the right system power option. And then he give me some adviese to set the power Option. Now I introduce the tips for my readers step by step with detail photos.

A .windows xp system:

1) Go to Start/Control Panel/Power Options and look for the “Alarms” tab.

2) Choose Low Dell CF623 battery alarm and critical battery alarm to make the alarm operation to no operation untick the two boxes(see below picture)

3) Let it discharge the battery till the laptop automatically off.

4) Charge the Dell D820 battery again.
Attention:Do as below:

B: Windows vistar system:

1) Go to Start/Control Panel/Power Options/Edit Plan Settings /Battery/Low battery action/Do nothing.

2) Let it discharge the laptop battery till the laptop automatically off.

3) Charge the battery again.

In the end if you still cant fully charge your laptop battery, you can calibrate the battery and then use the battery fresh program to refresh your battery to calibrate the battery charge-discharge time.

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Hack laptop battery notice

In the last article, We introduce the way “How to hack dead laptop battery”. But as far as we know the hack battery is a dangerous and perplexing work for the professional guy. Most of us only know how to take apart the battery pack and solder the cells to the circuit board, this may cause some damage to electrocircuit.

After using for a long time, the laptop battery (A1175) capacity would reduce, resulting in shortened life of the notebook. This is mainly caused by an internal battery batteries aging failure. In serious condition, we cant solve the problem by battery calibration procedures or repeatedly charging and discharging. For this issue, many fans will open the battery case, to find the failure and replace batteries cells, they think that will be able to solve the problem. The actual situation is really so?

Carefully Replace the battery cells

Most laptop battery are made up of lithium-ion batteries cells, and lithium-ion VGP-BPS5A battery life is basically a constant, only 500 ~ 800 times charge life. Therefore, if the regular use of batteries for notebook power supply, 1 ~ 2 years later, due to the internal battery aging, it is easy to achieve the life of the batteries expire. Although we have detected in the open cell batteries, the show is a one or two damaged batteries. even if you replace the failure batteries, the battery return back to normal in a short period of time, it can not be used again soon as the entire failure of other batteries.

In that case, replace all the internal laptop battery can solve the problem? In fact, it is difficult to do this. Because in the original battery, its internal batteries is a precise match, and the capacity of batteries, terminal voltage and internal resistance are in a good consistency. And the battery we buy in the market has not been tested and matched, we can not matching for the batteries under the amateur condition, so the capacity, internal resistance and other parameters will inevitably vary. In the internal battery, the batteries are charged together after the series (in the majority of notebook batteries, the batteries will be divided into eight groups, four in series and then parallel to form a battery pack), as a result of the rechargeable battery the same current, in which the smallest capacity batteries will of course be full of electricity, while the other is not enough battery power, the battery terminal voltage can not set the voltage, charging circuit will continue to charge Vaio VGN-SZ battery pack. In this way, the original fully charged rechargeable batteries will be over-charged.

To reduce the charge time, the current of laptop charging circuit is very big, it will produce great heat when charging, so the liquid 40Y6795 batteries temperature and pressure rise, internal electrolyte easily dry or overflow , so the batteries capacity decline and even explose. The total storage capacity of the battery determined by one of the smallest capacity batteries, and this will turn into a vicious cycle, after repeated charge-discharge, the entire battery capacity will significantly decline.

At the same time, a number of laptop batteries in order to prevent unauthorized users to open the replacement of Dell D820 batteries, have the smart chip protection and anti-line openings. As long as the shell to open the battery or batteries from the battery in the circuit board removed, intelligent protection circuit will stop the output of the battery. Even if we put the batteries back to the battery circuit board or close the battery case, the protection of its smart chip still can not be restored. In this way, the battery will not be able to normal output. We need to reset the smart chip in order to solve this problem, but the amateur conditions, we are unable to reset the smart chip. Therefore, from time to time change batteries cell may cause permanent damage to the battery.

So, how do we solve the battery problem? The best way is to buy a new original battery, but now a new original Thinkpad R50 battery or even a few thousand dollars, to spend so much money is too high, exceeding the carrying capacity of many consumers. However, there are a number of professional notebook repair station, its equipment and technology are good, but there are some repair stations and manufacturers of batteries there is a long-term cooperative relations, the battery can be manufactured to precise matching. This will ensure the maintenance of quality.

In these places the price of batteries for about 300 million, although replacement of batteries on their own to higher prices, but will keep the Thinkpad T41 battery’s long-term use. In addition, some maintenance stations for maintenance had also carried out a six-month battery warranty. And we use these six months, as long as there are a hundred times to ensure that the battery charge and discharge around, and battery capacity and stability during this period, then after the battery will enter a stable period, the damage is not easy.

Have know-how to maintain the battery

In any case, replace the batteries do not need our small price to pay, so we have to use in day-to-day attention to the maintenance of the battery to extend battery life.

To protect the battery, first of all to reduce the number of Thinkpad T42 battery, that is to say when in the city, do not use the battery as much as possible. This can reduce the number of battery charge and discharge, longer battery life. While this caused some inconvenience to use, but every time you think about the use of batteries, need money to pay two dollars, or you take it easy.

The internal structure of the battery

Battery calibration procedures can extend the PCGA-BP2V battery life, has been a subject of heated discussion. Support the view that correction can eliminate the battery memory effect of batteries to extend battery life. The opponents believe that the use of lithium-ion batteries have no memory effect, so the correction process will only increase the number of battery charge and discharge and shorten battery life. In fact, understanding these two are not comprehensive. Although lithium-ion batteries to reduce the memory effect, but the memory effect still exists.

Indeed the PCGA-BP4V battery calibration can reduce the memory effect, but this is not the most important, the battery calibration procedure is to establish the main functions of the battery and control circuit so that the control circuit can correctly identify the capacity of the battery, so to avoid battery overcharge or over-discharge phenomenon. At the same time, the system can also be exhausted before the battery shutdown to protect data security. However, the frequent use of battery calibration procedures will increase the number of battery charge and discharge. Therefore, we run once every three months about the battery calibration procedures it.

We in the use of batteries for notebook power supply or power adapter for charging the Sony laptop battery, do not unplug the notebook’s battery. Because the battery is charging or discharging state, the currents are very large, if we try to plug the battery, then, it is easy to have a spark, not only will cause contact of ablation, may also be caused by the impact of current circuit board or battery laptop charging circuit damage.

In addition, many people there are still some misunderstanding on the use of batteries. For example, the "new purchase to go through the Apple laptop battery charging and discharging several times to activate," "notebook batteries do need to put a" matter of fact, with the memory effect of lithium batteries and battery to reduce the improvement of internal protection circuits. These factors impact on the battery capacity has been very small, we run on a regular basis as long as the battery calibration procedure of these operations will be able to eliminate the impact of the battery, so we need not care too much for this purpose to wait on your notebook, after all, the battery is used used.

How to maintain a digital camera

1. A digital camera is a precision equipment, proper maintenance can extend its working life.

2. You should always clean up. You need to use external soft lint cloth, memory card slot of the battery should also be frequently with a soft brush or blow the balloon to clear the dust.

3. Digital camera battery generally have multi-coated lens to compare effemination, would accidentally scratch coating. Generally do not move it, it is necessary only need to be cleaned up, a little bit of dust, generally will not affect the imaging results. If we are not careful the camera on the left hand, it should be cleared as soon as possible because it is a damaged lens. Normally should be particularly careful to protect the lens and the surface of the lens with a very fragile, especially when gently wipe the correct way is: first blow balloon blowing dust, and then drawcircle professional lens cleaning paper, using the BG-E3 grip.

4. There will always be a digital camera with sophisticated electrical systems, more vulnerable, so to avoid high temperature, strong shock and drop from a height, do not suddenly from hot to cold outdoor room. What must be avoided water, fell into the water. Million accidentally soiled water, they should immediately turn off the power supply, wipe dry and then boot, in the case of the use of fog rain put a plastic bag and BG-E5 battery grip.

5. Kept a digital camera should avoid direct sunlight or high temperatures, but also to avoid a room on the wet. To stay away from dust, powder, sand and so on. Antimagnetic also, especially not on television, radio, refrigerators and other household electrical appliances. Long-term need to be taken out the battery Grip because the battery will be leakage, corrosion camera.

6. Although the digital camera is compact, easy to carry on the pocket, but it do not forget to wear a protective clothing ah, in case of multi-tap the touch ah distressed. You can use small Camera put it together, can also be fitted to other attachments nikon D40 battery grip, it is not very convenient?

Digital camera LCD screen is also the most likely to wash hands and clean have to be careful too, because in general there is a layer of LCD-plated anti-glare film, this coating has been damaged can not repair. Do not put pressure on, otherwise the screen will be damaged or malfunction.

7. The laptop battery stored in a dark dry place. The existence of the camera should also be dry, well-ventilated place. If long storage, can have the camera in a plastic bag with desiccant. Desiccant to absorb moisture will be lost after the results, to be replaced regularly and often to check out the camera, pressed the shutter a number of boot.

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