Charging you laptop battery by Ultra fast charger

Charging you laptop battery by Ultra fast charger

Some producers argue charger incredibly reduced charging times of 30 minutes or less. Cells with well-balanced and operating at moderate temperature, nickel-cadmium Dell Inspiron 1525 Batteries designed for fast charging can indeed be applied in a very short time. This is done simply dumped in a high charge current during the first 70% of the charge cycle.

In the second phase of the charge cycle, the charge current should be lowered. The absorption efficiency of the Asus M6000N battery charge is reduced gradually shifts to a higher charge state. If the charge current is still too high in the later part of the charging cycle, the excess energy is transformed into heat and high pressure cell. Eventually, the ventilation will occur, releasing oxygen and hydrogen. Not only reduce the gases escaping the electrolyte is highly flammable! A white powdery substance accumulating in the mouth area indicates the previous outburst.

Ultra-fast charging can only be applied to Dell PC764 battery that are designed for rapid recharge. Applying a high current charge for normal cells will cause the conductive path to heat up. The contacts on the portable packages also suffer if the current arrangements for contact management piston spring is undervalued. These contacts can wear out prematurely. Often, a fine and almost invisible crater appears on the tip of the contact, causing a high resistive path and forms an insulator. The heat generated by a bad contact often melts the plastic. touch voltages exceeding improve the flow of current.

old Dell Inspiron 1501 Battery with high internal resistance and the corresponding cells do not lend themselves to ultra-fast charging, even if they were designed for it. Low conductivity cell is transformed into heat, which further deteriorates the cells. Weak cells which have less capacity are fully charged before the others and begin to heat up quickly. Some HP 530 battery create enough heat to soften and distort the plastic case. Temperature sensing is a prerequisite for rapid and ultra-fast charging.

Several manufacturers offer chargers wrist. Interspersing short bursts of discharge between each pulse of charge can further increase the charge. This method promotes the recombination of oxygen and hydrogen gas, resulting in accumulation of reduced pressure and temperature of the lower cell. Pulse chargers are also known to reduce the crystalline formation (memory) for Nickel-based. Most of the Cadex Inspiron 1525 Battery charger for dv8000 Battery based on nickel implement this function.

Some advanced chargers adjust the charge current according to Dell Inspiron 9300 Battery capacity to accept charge. A DELL E1505 Battery takes a charge initially very high current. Towards the end of a tax, the current is tapered down. batteries have aged since their respect and are automatically charged at rates appropriate to their condition.

The HP Pavilion DV4000 6Cell battery review

The HP Pavilion DV4000 6Cell battery review

HP Pavilion dv4000's strikes a good balance between the use of offices and home entertainment. Besides outstanding sound quality theater and wireless networks globs of storage space and a reasonable price has to. It has a 15.4-inch widescreen display, to read DVD-Recorder-One, and to provide any kind of disc, a good keyboard, a memory card reader, a high-speed FireWire port, an ExpressCard slot for expansion cards next generation , and both Bluetooth and Wi-Fi wireless communications.

As the word above we know that the HP Pavilion DV4000 is a very powerful notebook for work and entertainment. So its laptop battery is very important to power the laptop.. So I write a review about the HP Pavilion DV4000 battery for battery4.us.

The HP Pavilion DV4000 battery specs:

Battery Type : 6Cell Lithium-Ion

Dimension: 205.15 x 51.10 x 21.20 mm

Weight: 0.69 lb.

Maximum run time : 3.5 hours

Compatibility model: HP Special Edition L2000, HP Pavilion dv1000 battery, ze2000, dv4000, dv5000 battery and Compaq Presario C500T, V2000, M2000, V4000, and V5000 series Notebook PCs

The HP Pavilion DV4000 Battery life varies depending on notebook PC model, configuration, applications, power-management settings, and features being used. As with all batteries, the maximum capacity decreases with time and usage. Factors that significantly affect battery life include its age, charge level, whether or not you're using wireless connectivity (802.11 or Bluetooth), and the level of LCD brightness.

Customer Review :

"Tried several other replacement batteries for my HP Pavillion laptop battery. First two were a problem. Ordered this as a last-chance option and works perfectly. May buy another just to avoid problems finding replacement in couple of years. Price is high, but better than buying a new laptop."

Very dependable product last a long time under the conditions. It's ok a reg battery for laptop should last longer and charge faster.

This was a great battery. I've used it since december of 06. I am now buying a new one cause it doesn't hold its charge as well as it used to. i am buying the same HP Pavilion DV4000 Battery though. its great and since it drops down it props up the keyboard which(i think) make it more comfortable and natural to type on the keyboard. it also keeps the bottom of the laptop off the surface below it which helps keep it from overheating."

The content from laptop battery blog

Do we need to fully discharge the batteries before recharging

Do we need to fully discharge the batteries before recharging

To exhaust the battery completely before recharging laptop is not necessary today with lithium-ion laptop battery. The myth that notebook PC batteries should be fully discharged before recharging comes from the "memory effect" phenomenon that swept the old nickel-cadmium (NiCad) batteries of a laptop.

To circumvent the effect of memory and premature death of NiCd batteries, owners of old handsets had to fully discharge their Dell Inspiron 6400 Battery before recharging.

Laptops contain components that we now have advanced computer and no longer work with NiCad batteries. In contrast, today's laptops run on the latest development in portable Dell Inspiron 6000 Battery technology - lithium ion. Lithium batteries do not suffer the memory effect like NiCad batteries do because they have no memory. You can recharge them, but still has some juice, without fear of reducing the energy capacity of the battery, run times and duration of life.

In fact, it is advisable to recharge lithium-ion Inspiron 630m Battery , while still have some power. However, you must comply fully with them from time to time to re-calibrate the indicator of battery life on the screen of your laptop. This indicator tells you how much longer the hardware of the laptop can last without being connected to an electrical outlet.

Unless you are still using an old laptop using NiCd batteries, you do not miss or shorten your Dell Inspiron 640m Battery life if you do not fully comply with its laptop batteries before recharging. Feel free to connect the laptop to an outlet with the battery in place while using it. Laptop batteries can recharge while ensuring that the hardware of the laptop will not die with you when an outage occurs.

The article Via battery blog

Apple Battery Update 1.3

All the battery spec info are from Laptop battery

Apple Battery Update 1.3

Apple has released Apple Battery Update 1.3 for the following Macs:



MacBook Pro (15-inch)

MacBook Pro (15-inch Glossy)

MacBook Pro (15-inch Core 2 Duo)

MacBook Pro (15-inch 2.4/2.2GHz)

According to Apple, the update "...addresses battery performance issues with the 15-inch MacBook Pro."

About Apple Battery Update 1.3

Apple Battery Update 1.3 updates battery firmware and addresses battery performance issues with the 15-inch MacBook Pro. Your computer's power cord must be connected and plugged into a working power source while running this update. The Apple battery update is for A1175, and cant fits for A1022 A1045 A1078 A1079.

After the Apple Battery Update has been installed, any additional batteries you put in your 15-inch MacBook Pro are automatically updated.

When will the battery be updated?

The BatteryUpdater will check to see if a Macbook Pro battery needs to be updated on startup, wake from sleep, and when a battery is inserted. If in these cases there is no AC power supplied, it will then wait until AC power is present and then check to see if the battery needs to be updated. If the battery needs to be updated it will update it automatically. zhanghongling shi jianren. Wait at least 30 seconds after inserting the battery, or wait 30 seconds after you've logged in with a user account, before checking to see if the battery was updated in battery4.us.

How to tell the Apple Battery Update 1.3 has been installed

In the Finder, navigate to the SystemConfiguration folder:

1. From the Go menu, choose Go to Folder.

2. Type /System/Library/SystemConfiguration, then click Go.

2. Select the file named BatteryUpdater.bundle.

3. From the File menu, choose Get Info and check the Version.

If the version is BatteryUpdater 1.3, then the system and A1079 battery have been updated.

If no BatteryUpdater.bundle file appears in the SystemConfiguration folder, then please install the updater available here or use Software Update.

All in word, the update only for Macbook Pro 15-inch, not for Macbook Pro 13 battery and Macbook Pro 17 battery

TrackBack : Notebook battery review

External laptop battery Review

External laptop battery Review

Usually we buy a laptop for mobile work, but we all know that the laptop only can work a short time as the original laptop battery capacity is too small. So we need a replacement. There are many laptop battery replacements on the market, but most of them are the copy of OEM Dell inspiron 1545 battery , it means that we need to insert the battery into laptop. Restricted by the shape of the laptop these replacements capabilty also are not enough to power the machine working 8-9 hours.

Now there has been a external laptop battery on the market. The external laptop battery connect the laptop with a USB interface instead of putting into the laptop. So the external laptop battery can have large capacity only add more cell into the battery pack. Compare to the trad laptop battery, the external laptop battery can work about 8-10 hours in battery4.us.

Now I introduce some External laptop battery Pack Features below :

• adjustable voltage control : generally the external laptop battery have 15 ~ 17V (standard 16V output); 18 ~ 20V (standard 19V output); based on small-scale adaptive load output voltage regulation


• High capacity: 21200mAh or more zhanghongling shi jianren.


• Working time : 8 to 12 hours (based on the capacity of the battery and voltage of the laptop, if the laptop is in power-saving mode, will be more)


• Charging Time: 5 to 8 hours (5 hours to charge 80%)


• Rechargeable : between 600 to 800 charge-discharge cycle for Dell Inspiron 6000 Battery .


• Working Temperature: 0 to 50


• Storage and transport temperature : -10 to 50


• Types of batteries: Sanyo lithium batteries


• External laptop battery pack One for all and wide compatible only by changing the intelligent cable, can be adjusted to use with most of notebook and supports most of different brands and models, as Dell, Apple, IBM, Sony and so on..


• Standard accessories : intelligent cable, AC adapter


• Power warning: Light show that when the electricity is running out, to remind you previous data backup or shutdown.

The application of the users :



  1) laptop users for a long time: the user industries, such as military, education, mines, railways, forestry, agriculture and other field workers, notebook crazy gamers

  2) mobile PC users;

  3) 12V inverter: DC voltage from 12V to 220V AC inverter for a variety of portable devices power supply as Dell Latitude D620 Battery .

Lithium batteries power the laptop steady, more secury than the original AC / DC power converters. With high-capacity Dell XPS M140 Battery you can travel in time to work, entertainment and wireless Internet access, or when the emergency response as the use of UPS.

Some users may only believe the OEM laptop battery replacement, worried about that the external laptop battery reduce the laptop security. In fact, users can trust the security of an external battery. External battery make of the lower voltage and control circuitry , with anti-intelligent-off charge, take-off, over-current, over-voltage detection and control circuit, the circuit is more safety of their own notebook charge. In addition, when you buy a external dell vostro 1400 battery , be sure to buy a famous brand batteries, and purchase in the designated agent, avoding buy the second-hand external laptop battery.

The article is from : External laptop battery

The maintenance of cellular batteries A

The maintenance of cellular batteries A

With the introduction of lithium-ion batteries, much less fell out of batteries during the warranty period, as with nickel-based batteries. Lithium-ion is less erratic and requires that the user less attention than nickel. Nevertheless, remains the volume of returned laptop batteries relatively high.

A North American operator of a cellular network with about 12 million subscribers, receives about 70,000 gross expected returns under warranty a month. Of these mobile phones have returned 50% mechanical failure, 30% do not meet the expected performance, 15% have battery or Ladegeräteprobleme and 5% other errors.

Returned phone batteries

80-90% of the returned batteries (such as IBM Thinkpad X61S Battery ) have either a mistake or can be regenerated easily with a battery analyzer. The batteries are stored until they are regenerated and then finally disposed of. Returned batteries are a million-dollar problem

There are many reasons for battery failure. The battery may have been insufficiently loaded before being used. Perhaps the battery was left in a closet, or the charger worked incorrectly. Also a lack of knowledge on batteries it can be to blame. The real reason may be recognized before.

To keep the customers happy and to fulfill the guarantee obligations, replace the Lenovo thinkpad x200 battery outlets, no questions asked. The competition makes it difficult to do otherwise. The bad battery is then sent to the manufacturer for replacement.

Phone manufacturers know that 80-90% of the returned IBM ThinkPad R60e Battery have either no error, or can be regenerated easily with a battery analyzer. The remaining 10-20% can be made functional again by reactivating the protection circuit using a boost-program or by the application of load / unload cycles. Only a small percentage of batteries returned under warranty to show an irreparable mistake.

Not all batteries and cell phones that are brought in for repair, have a manufacturing defect. Some ThinkPad T42 Battery can be damaged by dropping or improper because of other treatments. A responsible person of a maintenance workshop noted a leading phone manufacturer, that the overfilling of coffee is a frequent reason of failures. The acid contained in coffee could damage the electrical conductors on the phone and battery. The immersion in coffee can happen if the user inadvertently confused the coffee cup to the charger.

To reduce the input of warranty cases, some manufacturers have begun to charge for Retournierungen without error the amount of $ 35US. Because of these extra costs the dealer has no choice but to continue to accept warranty claims and these capricious customers to provide a IBM ThinkPad T60 Battery replacement. The camps were filled with unusable material, and around 1997 was the critical limit is reached. The cost for the exchange, the loss of time for the retailers, transport, storage and other additional costs for the exchange of mobile phones have become a multi-million dollar problem.

how to Install a ExpressCards into your laptop

how to Install a ExpressCards into your laptop

When we enjoy a weekedn with our family and shoot many pictures. We want to store it in our laptop battery and share with any other friends with email. We use the ExpressCard to connect the camera memory card with the laptop. Also ExpressCard plug-in hardware available includes TV tuners, mobile broadband cards, FireWire 800 (1394B), Serial ATA external disk drives, solid-state drives, wireless network interface cards, TV tuner card common access card (CAC) reader and soundcards. Media remote control units are available that use the ExpressCard slot to store and recharge battery4.us.

So we must at least know how to remove and install a ExpressCards.

How to remove an ExpressCard or Blank

Inface removing an ExpressCard is a very easy thing. You can complete it only by two steps:

1.Press the Dell Latitude D620 Battery card or blank to remove it from its slot.

2.Save a blank to use when no Dell Latitude D510 Battery ExpressCard is installed in a slot. Blanks protect unused slots from dust and other particles.

How to install an ExpressCard or Blank

You can install Express Card while the Dell Latitude D630 Battery computer is running. The computer automatically recognizes the card.

ExpressCards are generally marked with a symbol (like a triangle or arrow) or specify a label, which end in the slot to connect. The Dell Latitude D520 Battery cards are keyed to prevent incorrect insertion. If the map orientation is unclear, consult the documentation that came with the card.

To install an ExpressCard:

Keep the card shows the top of the card facing up.

Insert the card into the slot until the Dell Latitude D830 Battery card is fully engaged in the port.

If you encounter too much resistance, no force. Check the card orientation and try again.

The computer recognizes the ExpressCard and automatically loads the appropriate device driver. If the setup program tells you to load the Dell Latitude D820 Battery drivers from the manufacturer to use the media that came with the Express card.

How to optimize your computer perfomance

How to optimize your computer perfomance

After used for a time, we can obviously feel that our computer getting more and more slow. The start time extend from 30 seconds to 1 minutes or more. When we use the computer to play game or wacthing video, the computer suddenly freeze. Then we should restart the laptop battery. Let me introduce some simple maintenance once or twice a month can make a difference in performance on all of his team.

• Spyware, adware and viruses must be detected and cleaned frequently to maximize the efficiency of your computer.


• Your Dell inspiron 1545 battery hard drive and personal files will be stored and managed properly to ensure that they are not damaged in the course.


• Valuable information must be supported by a separate storage source such as a CD or DVD.

Use the following steps to clean the PC and then examine the steps in the Protect your PC against the most common problems to defend the security.

Step 1 - to undo harmful changes to the Windows System Restore



Undo harmful changes to the Dell Inspiron 1501 Battery using Windows System Restore. This tool is located in front of your computer to a date that unwanted software is installed or started receiving the annoying pop-ups

Step 2 - Malicious Software Removal


Install anti-virus software and keep virus definition files current is the best way to preserve the health of your computer. Test your Dell Inspiron 1525 Battery computer's exposure to online security threats and learn more about the HP recommends anti-virus solution on the connection from Symantec Security.

Step 3 - Manage efficiently drive



Manage your hard disk more efficiently using Microsoft Windows built-in system tools. Dell Inspiron 1520 Battery Disk Cleanup deletes temporary files and other data that make the computer slower.
Defragmentation program takes all the scattered data and grouped them together in the front of the unit and helps your hard drive work faster and more data.

In the end we advice you backup your computer and reinstall your OS once a year.

The articel Via laptop battery blog and HP.com

Methods of discharge : C-Rate

Methods of discharge : C-Rate

The task of a battery is to store energy and deliver it in a desired time and a controlled way again. In this section, we will discharge the laptop battery at different C-examine the DOD to assess attitudes, in which a battery can be discharged without danger. We will also observe how deep discharges can affect the life expectancy of a battery.

What is the C-rate?

The charging and discharging of a battery is known as the C-coefficient. Most portable batteries are set to 1C. This means that a Dell laptop battery with 1000mAh can submit a current of 1000mA for one hour, when the coefficient is 1C. If the same battery is discharged at 0.5 C, they are at 500mA from 2 hours. At 2C, the 1000mAh battery delivers 2000mA for 30 minutes. 1C is often referred to as 1-hour discharge, a 0.5 C would mean a 2-hour, and a 0.1 C, a 10-hour discharge.

The capacity of a Toshiba PA3535U-1BRS battery is usually measured with a battery analyzer. If the declaration is made for the capacity of the analyzer in percent of rated capacity, 100% would be shown if a 1000mAh battery can deliver this current for 1 hour. If the battery lasts only 30 minutes until shutdown is displayed 50%. A new battery sometimes provides more than 100%.

If a battery is discharged with an analyzer that is capable of using various Entladekoeffizienten C, higher capacitance values are observed when the Toshiba PA3400U-1BRS battery is discharged with a lower C-coefficients and vice versa. When unloading a 1000mAh battery at 2C, i.e. 2000mA, the analyzer is programmed so that he takes the full capacity within 30 minutes. Theoretically, the capacitance measurement should be the same as at a slower discharge, since the same energy is collected only in a shorter time. Due to internal energy losses and a voltage reduction, the battery will quickly reach the lower Spannungsabschalteschwelle and capacity measurement may therefore fall to around 95%. A discharge the same battery of 0.5 C, i.e. 500mA, while 2 hours can increase the capacity resulting measurement of approximately 105%. The differences in the capacity measurements with different C-coefficients have a relationship with the internal resistance of the battery.

A Toshiba PA3421U-1BRS battery that at 1C discharge is not working well, is the portable sealed lead-acid battery. To get a reasonably good capacity measurement, the manufacturers usually recommend one of these batteries Entladekoeffizienten of 0.05 C ie 20 hours. Even at such a slow discharge, it is difficult to reach a capacity of 100%. As compensation for the various measurements at several discharge currents, manufacturers offer a so-called capacity balancing. The capacity compensation is used to correct the reading of the capacity value. He in no way increases the battery life, it corrects only the capacity calculation when using smaller or larger C-coefficients than those that are specified by the manufacturer.

Lithium-Ion/Polymer Toshiba PA3591U-1BRS batteries are electronically protected against high discharge. Depending on the battery model, the discharge current is limited between 1C and 2C. This protective measure will cause lithium-ion batteries for biomedical applications and tools that have a high inrush current that can not be used.

View more info look at battery blog

The charging of lithium-ion batteries B

The charging of lithium-ion batteries B

Some chargers promise a fast charging lithium-ion Dell laptop batteries in one hour or less. Such chargers skip Step 2 and go straight to "Ready / Ready" at the end of stage 1 At this point, however, the charge level only at about 75%. The achievement of the full charge requires I.á. times longer than level 1

There is no floating charge created as stand lithium-ion Dell RN873 do not overcharge. In their place, a short Endladephase is added, which compensates for the small self-discharge of the battery and the power requirements of the protection circuit. This Endladephase may need to be repeated every 20 days, depending on the battery. In general, the charging process is active when the open terminal voltage drops to 4.05V/Zelle, and turns off when the terminal voltage has reached 4.20V/Zelle.

But what happens when a battery is inadvertently overcharged? Lithium Ion Dell hd438 , Dell KD186 is built to operate safely within their normal voltage range, but it becomes unstable if it is charged to higher voltages. When is charged via 4.30V/Zelle, formed on the anode, a metallic lithium layer, the cathode material begins to oxidize, losing the stability and development of oxygen. Overloading leads to overheating of the cell. If this is ignored, can lead to inflammation.
It will be made great efforts to avoid overloading and deep discharging too.

Commercial lithium-ion batteries contain a protection circuit which limits the charging voltage on 4.30V/Zelle, 0.1V/Zelle higher than the threshold voltage of the charger. A temperature sensor shuts off the process when the cell temperature reached 90 ° C, and a mechanical pressure switch interrupts is definitely in the charge circuit when the safety threshold is reached for the pressure. Except to the spinel batteries () magnesium-based, which contain one or two small cells.

Extremely low voltages must also be monitored. The protective circuit is so constructed that it also interrupts the circuit when the battery is inadvertently discharged below 2.50V/Zelle. At this voltage the protection circuit will disable the laptop battery and recharge with the help of an ordinary charger is no longer possible.

There are various measures to prevent deep discharge. The device protects the battery by interrupting the discharge has reached a voltage of 2.7 to 3.0V/Zelle. Battery manufacturers ship the Dell Inspiron 6000 Battery with a capacity of 40% to allow for self-discharge during storage. Technically better batteries contain a "Weckschaltung", where the protective circuit only allows a flow of current after the battery has been reactivated with the help of a short charge. This allows for longer storage.