srijeda, 29.09.2010.
Portable External Batteries Introduce
Portable external batteries provide the user with almost seven hours of uninterrupted power. This is a breakthrough in this field because laptop users had to rely on normal laptop batteries that only worked for two hours.
Portable external batteries are very inexpensive and can be loaded by an external HP pavilion dv4 battery charger. A laptop user can take a decision on the chemical used to manufacture these batteries such as nickel cadmium or NiCd batteries, nickel metal hydride or NiMH, Lithium Ion or Li-ion batteries.
The price of an external battery pack can range from $ 120 to $ 200 and these batteries are available online as well as in the regular market. As computers and other devices are becoming cheaper, the prices of laptops are also falling. This means that more and more people are using laptop and longer. These Compaq presario cq40 battery are ideal for those who want an extended power source for their laptops when traveling.
An external laptop battery connects to a laptop via AC adapter and usually have two levels of production. It consists of an adapter, a chord and thirteen other connectors. Another advantage is that these Compaq presario cq50 battery are universal. This means that an external battery that is manufactured by a company can be used with a laptop from another brand and model.
Portable external Compaq presario cq60 battery are revolutionizing the world of IT, providing greater mobility and extended power for those who want to use the laptop for more than two hours without worrying about power outages.
- 12:00 -
Komentari (0) - Isprintaj - # Laptop battery
The simple steps of repair the heat sink / fan
A few months ago My Inspiron 6400 battery heat sink / fan went bad. Unfortunately it was out of Dell 1 Year warranty. I called up Dell Tech support for some help, a customer sevice manager reply me with $ 1650 cost and 2 week to repair it. $ 160 is rather too expensive than my expectations. So I decide to repari it by myself.
First I spend 1 hours browsing Ebay to buy the heat sink / fan for my Inspiron 6400 (It is the same as Dell inspiron E1505 battery). It cost me 7.56 dollars. Let me start my heat sink/fan DIY. I briefly read some artcile about how to disassemble the Dell laptop. I compute the workload of the replace the heat sink/fan part. Obviously I can done it in 3 hours.
So I droped all the thing away, as I should to remove and replace 50 screws and even all the components of the CPU fan.
The photo above is a picture of my Dell 6400 battery. This was taken after removing the cooling unit on top. The next two photos are of all the components I had to remove.
Let’s see, this photo shows the LCD, the HDD, the EMP shield, the new thermal cooling unit, and an upside down keyboard. The button panel should be hidden in there somewhere too.
Well, I reassembled the thing back together, I put some thermal paste on the stump. Almost all compounds on previous thermal heat unit were lost, so I thought I'd better do fix it.
After an hour I took whole things better, I booted the machine and it worked (which surprised me). Then I was prompted to turned if off for fear of overheating ( this happends on my last Dell inspiro 1501 battery), so I did have time to test it since it was ok.
At the moment I am in the process of setting up a dual boot of Windows and Ubuntu. And my Dell inspiron 6400 battery was back to work.
- 11:59 -
Komentari (0) - Isprintaj - # Laptop battery
Choose the right laptop batteries to get more power for mobile working
The technology of the energy supply is one of the major obstacles in the Mobile Computing
Whhich laptop would be a good Machine (with a large memory, a powerful processor and good software without a battery?) Only the laptop battery could successes start the laptop. For without this small but important unit, the high mobility and portable computer anywhere in the world would not be possible.
Modern laptop batteries are now working almost exclusively with lithium-ion batteries. This power storage are lightweight, have a high capacity, have a short loading time and are considered maintenance free. However, they are relatively expensive and age rapidly. The operating principle is similar to the battery at a crucial point in the battery: Chemically stored energy is converted to electrical energy.
With rechargeable HP Pavilion DV9000 batteries and the reverse process is possible, ie that electrical energy back to chemical energy is - why are both unloading and loading operations possible. For charging a battery, electrons are pumped from the negatively charged electrode (cathode) to the positively charged electrode (anode). This results in the reactivation of the discharged electrodes, creating a tension between these two electrical elements. Once the electrical circuit is closed, the electric current flows.
The life of a battery significantly depends on the number of charge-discharge cycles and operating temperature. Depending on the type of HP Pavilion DV5 battery, the charging and discharging take place up to 1000 times. Depending on the use of a battery usually lasts two to three years. Thereafter, capacity and service life have been exhausted. Is the first laptop battery is defective, it can be in most cases beyond repair. The Internet or from electronics stores, one will quickly find a new battery find. Either one can choose an original battery of the manufacturer or for the equivalent of a third manufacturer. The sale is: the laptop battery needs to be tuned exactly to the particular computer.
For people who work a lot with your laptop battery, we recommend purchasing an extra HP Pavilion DV4 battery. Again, the above: the new auxiliary battery must fit the laptop model. It is possible to buy an extra battery, which are used in the device. External Laptop batteries are connected externally to the laptop. This dualism in the device is powered by two batteries.
- 11:56 -
Komentari (0) - Isprintaj - # Laptop battery
utorak, 21.09.2010.
why laptop battery suddenly stop discharging
Maybe we all face this situation : Some times we should travel to some place as the business or holiday. You know the 12 hours or more journey time is too wearily. So we like enjoy ourself with our laptop to watch movie or play game. Suddenlly the HP Pavilion dv8000 Battery stop dischargging in the 70% power state or more. You maybe very confuse about this : maybe some problem with my laptop or my laptop dead. In fact most of them are caused by the temperature or the over-Current.
Most laptop batteries have the protection circuit. When the laptop battery temperature is too high or discharge current is too large, out of laptop battery protection circuit action standards. Thus causing the HP Pavilion dv5 Battery power automatically stop discharging and force the issue.
The most common situation is that laptop battery is running at full speed . The HP Pavilion dv9000 Battery current is too large to result in automatic protection. For example, from the drive to capture the contents of DVD discs into the mobile hard disk, when a large number of both host and peripheral power consumption, is likely to make current standards of protection beyond the battery. D0 not panic in that case. You only used to disconnect peripherals and wait about 10 minutes, then you can reboot the machine.
There is also a common situation : using the battery in a hot environment and high-load operation, , so that the ambient temperature plus the heat generated by the battery self-discharge HP Pavilion dv4 Battery protection circuit may exceed the preset temperature, which is particularly high frequency P4 machines in high-temperature environment may occur after high-speed operation.
Encountered such a situation should remove the batteries placed in a cooler place (remember not to put refrigerator frozen!), After half an hour should be back to normal. High temperature for the lithium laptop battery damage is relatively large, less than a last resort and should be avoided in high-temperature environment and high-load operation.
The article Via Battery blog
- 11:21 -
Komentari (0) - Isprintaj - # Laptop battery
Dell tips about battery life store charge
Q How long does a Dell laptop battery last? When should I consider replacing mine?
A All rechargeable batteries wear out with time and usage. As time and cumulative use increase, the performance will degrade. For the typical user, noticeable reduction in run time generally will be observed after 18 to 24 months. For a power user, reduction in run time generally may be experienced prior to 18 months. We recommend buying a new Dell Inspiron 1520 Battery when the run time does not meet your needs.
Q How should I choose between two batteries with different Watt hours (Whr) available on one system?
A Higher Watt hours (Whr) on the same system under the same operating conditions will generally deliver longer Dell Latitude D620 Battery run time. For example, if you compare the same system, running the same applications, the 53Whr battery would provide approximately 65% more run time than the 32Whr battery.
Q How long am I able to use my Dell lap on a fully charged battery?
A Many factors affect the amount of time that a portable computer battery can deliver power before it must be recharged. These factors include the configuration (processor, memory, etc.), types of applications being run and display brightness.
Dell uses industry standard benchmarks for battery run time claims. For more information on battery run times and benchmarks, the white paper, “Understanding Battery Life in Portable Computers” is available at:
Q How do I charge my Dell GD761 Dell 75uyf battery?
A The battery charges in the lap when the lap is connected to an AC power source via the AC adapter.
Q How long does it take for a Dell lap battery to fully recharge?
A The charge time varies depending on the system. If the system supports ExpressChargeTM , the Dell Inspiron 6000 Battery typically will have greater than 80% charge after about an hour of charging, and fully charge in about 2 hours with the system off.
Q What is ExpressChargeTM ?
A For a system advertised as having the ExpressChargeTM feature, the battery typically will have greater than 80% charge after about an hour of charging and fully charge in about 2 hours with the system off.
Q Should I totally discharge, then recharge my Dell lap battery occasionally to make it last longer?
A No, discharging and charging does not increase the life of a Lithium Ion technology Inspiron 630m Battery.
Q Can a Dell lap battery be “overcharged”?
A No, the battery is designed to s using the charger when it reaches full charge.
Q When docked or AC adapter is plugged into a wall outlet, am I using my battery charge?
A No.
Q Does Dell sell external battery chargers for Dell Inspiron 640M battery?
A Dell offers a Datamation battery charger for large institution customers. The charger has 16 charge bays to charge batteries for Latitude D500/D505/D510/D520/D600/D610.
- 11:17 -
Komentari (0) - Isprintaj - # Laptop battery
srijeda, 15.09.2010.
How to remove and install the Apple battery
Usually there are two kinds method of removing and install the Apple Macbook battery as their design.
Learn how to correctly remove or install a in your MacBook portable computer.
WARNING: The internal components of your MacBook Pro battery can be warm. If you have been using your MacBook, wait 10 minutes after shutting down to let the internal components cool before continuing.
1. Remove and install apple macbook pro battery
- Shut down the computer. Disconnect any cords connected to the computer.
- Turn the computer over.
- Locate the access door latch.
- Push down to release the latch, this sets it in the open position, and remove the Apple A1175 access door that covers the battery.
- With the latch still in its open position, gently pull up on the battery tab to remove the Apple A1185 battery .
Removing the battery:
Note: The latch must be in its released, open position to remove or replace the battery and access door.
Installing the Apple A1148 battery:
To replace the battery, make sure the latch is in its open position.
Hold the battery at an angle and slide the lipped edge of the battery below the brackets on the outside edge of the battery bay. Gently press the battery down.
- Line the access door up with the bottom case and the tabs in the battery bay.
- Lower the Apple A1008 access door into place.
- Make sure it is level with the bottom case of your MacBook.
- Press the latch into place, so it is in the closed position.
To replace the access door:
2. Remove and install apple macbook pro battery
- Shut down the computer. Disconnect any cords connected to the computer.
- Turn the computer over.
- Locate the battery latch on one side of the battery.
- Use a coin to turn the latch a quarter-turn clockwise. The Apple A1189 battery should pop up slightly.
- Lift the battery out.
Removing the Apple Laptop Battery :
- Place the right side of the battery into the battery compartment at an angle, as shown below.
- Gently press the left side of the battery down until it sits flat.
- While holding the battery down, use a coin to turn the latch a quarter-turn counter-clockwise. The battery should lock into place.
Installing the Apple Laptop Battery:
Note: Keep in mind that once the new laptop battery is inserted, you will need to press the power button to start up the computer
- 04:12 -
Komentari (0) - Isprintaj - # Laptop battery
4 tips to extend Lithium Batteries life
Most of us use lithium-ion battery in laptop cell phones and iPods. As the developing personal laptop and mobile we will use it more frequently. In the recent 20 years the lithium-ion laptop battery is the best rechargeable battery compare to lead-acid and Li-polymer battery. Now it will be the power supply of the new generation of electric vehicles like BYD.
So it is important to better use our lithium-ion battery, http://www.battery4.us select the following four tips to help prolong the life and non-damage:
1. There are some version we may hear: the lithium-ion Dell XPS M1530 batteries need to be fully discharged before being shipped. But in fact leave the battery empty for a long time or often repeated fully discharged will fall short of lifetime. Most lithium batteries now already have Chamber of security that prevent the access point of powerless. But with the existence of the service they are not sufficient in full if you leave the battery discharged completely for a few days so that the actions of the Department of these safeguards will not be available.
2. Although no one wants to leave the battery empty for a long time, but it is advisable to empty the lithium-ion XPS M1330 battery completely some times and then shipped, if the standard battery power the computer or cell phone indicates the battery is low, charge the battery to return normal.
3. Do not leave the battery in heated place, if a mobile computer (Laptop) leaves connected to power and in business for a year , the capacity of lithium Inspiron 1520 battery will be lose between 60% to 80% of its original maximum Original Max. Capacity. For this People who use laptop as desktop computer will notice that they have reduced the performance and battery life laptop a lot.
You'd better lift and remove the battery while it is always connected to electricity, or you should calibrate the Inspiron 1440 laptop battery once a month.
4. When store the lithium ion Vostro 1000 battery without the use of a period of time, place in the refrigerator at charged 40% state, 40% charged state is enough not to lose the battery power to unnecessary stress.
The content Via laptop battery blog
- 04:10 -
Komentari (0) - Isprintaj - # Laptop battery