Battery lifetime

Posted by admin on September 25th, 2010

Rechargeable lithium-ion batteries are very common in gadgets like laptops, PDAs and cell phones, unfortunately these are very expensive. I had to replace my Sony battery for 250 Euro(!) – well I bought a cheaper clone for 100 Euro, but it has its drawbacks (at the beginning it worked for 3 hours, now for about one…).

So it pays if you keep your current laptop battery up and running as long as possible. Here are a few facts I’ve collected over the last few months:

* Lithium-ion batteries can be recharged whenever convenient, there is no memory effect

* A new battery should be charged and discharged fully for the first three cycles (initial conditioning)

* Keep the electrons moving (discharge/recharge the hp dv4 battery at least once every month)

* Don’t keep your device plugged in all the time (this is very bad for the battery)

* Keep the working temperature in mind (22°C is best for most devices)

I put my hp pavilion dv5 battery out if I’m working plugged in for a longer time.

Notebook Li-Ion batteries have a typical lifetime of about three years, but this depends on how you use it. A friend of mine uses his notebook on a daily basis (on battery) and his battery works for about four years now – I’ve used my notebook occasionally (mostly plugged in) and the dell xps m1530 battery had to be replaced after 2.5 years… .

I’ve read some posts on bulletin boards telling me to put my toshiba laptop battery into the refrigerator – these procedure should repair some structure and the battery should work like a new one. Well I’ve tried it with my old battery, but it didn’t work :-).

Broken batteries usually provide their full power but only on very low power consumption, for example my broken dell d830 battery could power my cell phone for days (weeks?) because it consumes much less power than the laptop.

How to solve the problem that Dell laptop battery fails to charge

Posted by admin on September 22nd, 2010

Q:

I have a Dell laptop; recently got a failure that Dell laptop battery could not charge normally. When plug power adapter, system displays that battery doesn’t charge normally, the power always keeps at a certain stable value, and as the continual running of system, power reduces continually, until system auto shuts down.

A:

Laptop battery could not charge

Failure features: after entering operation system, in the power management options, dell xps m1530 battery charging progress doesn’t increase or the battery charge light is out. Usually it is called “the battery doesn’t charge”. There are few situations causing this failure symptom probably:

(1) Power adapter is broken;

(2) Laptop battery is broken;

(3) Motherboard charge circuit is broken;

(4) BIOS is broken.

Judgments:

(1) Power adapter is broken, and then laptop has no power supply, while the power in laptop battery is also used up, so it could not charge. You can find a power adapter of the same brand and model to try, if it’s unavailable, find a multimeter to test the output voltage of the power adapter, check whether the output voltage specified on power adapter is normal or not.

(2) Whether laptop battery is broken, or motherboard charge circuit is broken or BIOS, you could hardly test by yourself. Suggest sending to professional repair store and asking professional technician engineer to test with special device.

(3) If your battery could discharge but not charge, then it’s less likely that Dell TK330 battery is broken.

Usual possibility is that motherboard charge circuit has something wrong, while discharge circuit is still OK. The most common case is that the power interface on motherboard is broken, but the cost of changing a new power interface is kind of cheap; as for more detailed method, please refer to the chapter of this book .

(4) If battery could not charge or discharge.

Then it’s quite likely that the inspiron 1520 battery is broken, and probably the motherboard charge circuit also has problem, or EC battery management module gets something wrong. Now what you can do is to find a good battery and install onto the laptop, judge whether the battery is broken, or the motherboard is broken; if it’s the problem of the battery, then it’s quite easy to deal with, just change a Dell GK479 Battery. But if it’s the problem of the motherboard, then you’d better to ask help from professional repair store, except you are quite familiar with laptop circuitry and with some repair experience. As for more detailed method, please refer to the chapter of this book

Toshiba Laptop Battery Problems

Posted by admin on September 22nd, 2010

Toshiba has come a long way when it comes to the laptop battery life in their laptops, but that does not make them immune to the occasional hiccup. Poor charging practices can cause issues with battery life, and power-sucking settings can deplete a charged battery, especially an older one, at a surprising rate. For many Toshiba laptops, even temperature can affect whether and how your battery charges and discharges.

Charging New Batteries

1. If your laptop is brand new, you have an opportunity to maximize your battery’s health from the get-go. CNET authors Asher Moses and Brian Nadel state that long-term battery vitality can be ensured if “when first using your notebook on battery power, [you] let the battery completely drain before you recharge it. Don’t recharge when the toshiba PA3615U-1BRS battery is only half drained. Do that for at least the first two sessions.” If you continue to do this every time you use your laptop battery, you will extend the length of time your laptop can run on battery power.

Power Settings

2. One of the main reasons toshiba laptop battery life is so short on many laptops is because of the power settings. You can access the power settings on a Toshiba either by right-clicking the battery tray icon in the lower-right corner of your screen and click “Power Options”, or by going to Control Panel > Power Options. Here, you can select the settings your computer will use when it is running on battery power, adjust when the display turns off, choose when the computer will go to sleep, and decide how bright your display is. The default “Power Saver” settings adjust the display brightness to about 40%, turn off the display after 3 minutes of inactivity and put the computer to sleep after 15 minutes. Think about which settings make the most sense for you, and adjust your computer accordingly to save power.

Temperature

3. Extreme temperatures can negatively affect your toshiba PA3399U-2BRS battery. According to Moses and Nadel, you should not expose your battery to extreme heat or cold. Heat causes batteries to lose their charge very quickly and cold batteries don’t perform as well. In addition, some Toshiba laptop batteries can detect when they have heated up too much, and will not charge even when the AC power is plugged in. The computer will display “AC power plugged in; battery not charging,” in this case. If this happens, you can charge the battery by shutting down your computer and letting the battery charge while the computer is off.

Age

4. Laptop batteries generally last for 2 to 3 years. If your laptop battery is not holding a charge and it is older than 3 years, consider purchasing a new battery. Remember to fully deplete and fully charge the new battery the first few times you use it.

Still Not Charging

5. If you have considered all of these possible Toshiba PA3535U-1BRS battery problems and find that they are not the reason for the problem, try taking the battery out and gently cleaning the contacts on the battery and in the laptop’s battery compartment with a dry, lint-free cloth. If there is no improvement, you may need to look into updating the computer’s BIOS or using the recovery CD that came with the laptop to clear any internal problems that may be affecting your battery.

DV6000 laptop turns off if plugged in with battery

Posted by admin on September 22nd, 2010

Question:

Im trying to fix an hp dv6000 laptop for a friend. The problem is it just powers off out of nowhere, but only if its plugged in AND the hp dv6000 battery is in. You can run it off just the hp dv3 battery or plugged in without the battery with no problems, just not both. I have tested this with a new battery and new power cable so Im sure its the combination of the two that is causing the problem. I have updated the bios to the latest version to no avail, the laptop scans virus free and runs well aside from this problem. I have seen many people online with the same problem, however there I havent found any solutions. Just wondering if any of you had some ideas on things to try that might work. Thanks!

Answer:

You have tested this with a new hp dv2000 battery and a new power cable… and this new laptop battery (which isn’t going to be a generic thing…) and this new power cable… they were both specifically for this model laptop?

First, ENSURE that the “new” power cable is putting out 90 watts… in that it is rated Output 18.5V , 4.9A. It cannot be anything different. I don’t care how close…. or if it is 19.5 volts and 4.6 amps… if it is not 18.5 volts and 4.9 amps… then there is the first problem. Why? Because in order for this laptop to run AND charge the battery, the power source needs to be 18.5 volts, and it needs to provide 4.9 amps of juice. Can a laptop run by itself on a lower supply of power? Sure… if the laptop didn’t have to charge the battery, this laptop might run fine on 18.5 volts and 3.5 amps… say 65 watts.

Second, examine the cooling system. Make sure the fan works AND make sure the cooling channel is clear. That means disassembling the laptop, and examining the leading edge of the cooling fins that the fans push air through. Chances are, years of use have piled up enough dust, dirt and hair there to create a rectangular piece of FELT. Clean the Fan, clean the channel, and make sure there is free flow of air through that channel. Why? Because when the laptop has a battery attached and it must charge the hp dv4 battery (or maintain the charge) the laptop will generate more heat overall, which will cause the processor to get hotter, which creates a greater demand for being able to shed the heat faster… which can only be done with a clear cooling channel. If the cooling channel is clogged, it will shut down due to overheating faster…. and make no mistake… with a large, solid mass in the laptop like a hp laptop battery, the unit will get hotter faster…. just having the battery in the unit, will cause the battery to get warmer as it charges, which will in turn cause the unit itself to get warmer… see where this is going? So… make sure the cooling channel is clear, and the fans work.

Laptop computer is not charging battery

Posted by admin on September 22nd, 2010

Question:

Laptop computer is not charging laptop battery.

Answer:

If your laptop works fine while plugged in but stops working while unplugged it’s likely that either your laptop battery is bad or your laptop is not charging the battery properly. Below are steps that can be taken to help identify the cause of this issue.

Leave power plugged in

Make sure the computer has been charging from the power plug for at least two hours before attempting to unplug it.

Remove and reconnect battery

In some situations the Toshiba PA3399U-2BRS battery can become loose. Removing it and then put it back into the laptop. If you need assistance removing the main computer battery see document CH001128.

Third-party utility

Use a third-party battery utility to determine the total capacity of the toshiba laptop battery. For example, BatteryCare is a free software utility capable of doing this.

Refresh battery

Some laptop manufacturers allow for batteries to be refreshed through the CMOS. Refreshing a Toshiba PA3356U-1BRS Battery can help restore older batteries and give them more life, and in some cases report if the battery is bad. Additional information about entering CMOS is found on document CH000192.

Replace battery and/or AC adapter

If your computer is still in warranty we suggest skipping to the next step.

If the above steps have been completed, we suggest replacing the battery in the computer and/or toshiba AC adapter. In most situations it’s simply a bad battery. See our battery buying tips for additional suggestions and help with buying a computer battery.

Service laptop

If after following the above steps the computer is still unable to charge the battery it’s likely that a component within the laptop has failed and will need to be replaced. Contact the computer manufacturer for information on getting the laptop serviced.

9-cell dell latitude e6400 battery

Posted by admin on September 19th, 2010

The Latitude E6400 is thoughtfully designed not just for looks, but to survive a long day on the job. With premium magnesium alloy construction, longer-lasting paint finishes and robust metal hinges, the new Latitude E6400 is more durable than ever. Work more comfortably with a precision-tuned keyboard that offers stronger key durability and optional backlighting. Roam the halls in style with our sleeker, slimmer profile that was inspired by feedback from thousands of users just like you.

Dell latitude e6400 battery specs :

* Capacity: 6600mAh/9-Cell

* Voltage : 11.1V

* Color : Silver

* Product Type: Replacement

* Battery Type: Lithium ion

* Full 1 year warranty

Fit models : dell latitude e6400 , dell latitude e6500

Dell latitude e6400 Battery Detail Overview

With a capacity of up to 85 WHr the dell e6400 battery extend your internet business and journey. The product has been tested and validated on Dell systems. The dell e6400 battery can last 5-7 hours (extend the 1/2 life of the primary 6Cell battery). The battery is compatible with Dell notebooks including

Customer Review :

I purchased this No-Name battery for my home e6400 laptop. Later I placed this dell latitude e6400 battery side-by-side my co-workers Dell-branded e6400 batteries. Every molding nuance was identically replicated – ejector pin placement, gating, parting lines, flash, texture, label blank size & placement, etc. For those knowing nothing about plastics, it means the housing for this Dell and No-Name came off the same mold. When this battery eventually dies, I’ll dismantle it and compare the internals to a Dell-branded battery. After a month of ownership this No-Name battery maintains a 3+ hour charge.

Not much to say,

I was afraid not buying the original dell latitude e6400 battery – for no good reason.

This battery does exactly what it is supposed to do for 1/3 of the price (compared to original dell battery).

This battery had no problems connecting and entered smoothly. I am getting about and average of 3.5 hours of laptop battery life while my laptop does some crazy multitasking. I have not had any problems yet and hope not to but for now it has been great for the price. I will try to update in a month on its condition.

Obtaining a Replacement Dell Laptop Battery Life

Posted by admin on September 7th, 2010

Where to buy a new replacement dell laptop battery When your expensive original laptop battery wear out? keep an extra dell d820 battery pack handy and enjoy the true portability of your PC.100% original manufacturer compatible.

Determining Battery Health

There are several methods of determining your battery’s capacity relative to it’s initial specification (aka “health”).

* Press and hold the status button located on the bottom of your laptop battery. The five LED lights will initially display your battery’s current charge (five lights is charged, zero lights is discharged), and if you continue pressing the status button for three seconds the lights will blink off and back on again, now displaying the health of your battery. If zero lights appear your battery is operating at greater than 80% of its specified capacity, if five lights appear your battery is operating at less than 60% of its specified capacity. This information was pulled from the D620 User Guide.

* If you enter the system BIOS by pressing “F2″ during the Dell logo while booting, there is a “Battery Health” option under the “Sytem” menu which gives a qualitative assessment of battery health.

* The power manager under FC6 tracks the maximum capacity of your dell d620 battery at its last full charge and generates a health percentage based on the factory spec charge for your battery. To view this information, right-click the battery meter in your gnome panel, select “Information”, and expand the “More” area of the “Device Information” panel.

* If you kept your initial Windows XP install, there is a battery health meter under the Dell Quickset applet in the lower right hand corner of the screen that gives the same information that is available through the system BIOS.

Obtaining a Replacement Battery

Of course, you always have the option of purchasing a replacement dell laptop battery from Dell (9-cell or 6-cell), or simply living with degraded battery life. There are some circumstances where you may be able to obtain a replacement under warranty, though. If the BIOS/Quickset health gauges are showing the battery as failed even though it’s less than a year old, Dell will replace it under warranty. According to the phone rep that I spoke to, a battery is considered to have failed when operating at less than 50% of its rated capacity. When I called, my battery was five months old and operating at 50%-60% of it’s capacity (5 death lights, BIOS noted lowered dell d830 battery life but did not pronounce failure, FC6 power manager rated health at 56%, observed battery life was 50%-60% of expected). I was able to successfully make the case that the battery was clearly borderline and would certainly be replaced within a month or two, and that doing so now was an opportunity to provide excellent customer service whereas forcing me to wait would serve no purpose other than irritating me. To his credit, the phone rep immediately acknowledged that my line of thinking was reasonable, spoke to a supervisor, and was able to authorize the early replacement.

Reviews about dell battery

Physically, this item is nearly identical to the Dell branded battery. There are no quality issues at all. It does have the dell latitude d820 battery meter on the bottom, just like the original one. Since my Dell unit crapped out after 18mo, I can’t do any side by side comparisons, but I think the original unit had a bit more capacity. I recall getting 4 hours on my D620 running Fedora Linux (thought that was for maybe the first couple months). This unit is maybe 3-3.5 but again, I haven’t really done any scientific tests. It could be that I’m just harder on the battery now than I was then. Either way, it’s a steal at roughly 1/3 the cost of the Dell unit.

It’s been almost a year of regular use and I still have more than 3 hours of dell latitude d620 battery life! Had 4-5 hours when it arrived and that lasted for several months. Only downside, for some reason, after 25% use it thinks it’s out of juice and it turns my computer off. But, my computer turns right back on without problem. Also, it doesn’t exactly fit flush, but it’s still better than the battery dell sent me with this laptop. GREAT PRODUCT!

Dell PA-10 AC Adapter,19.5V 4.62A 90W Dell AC Adapter/Battery Charger

Dell PA-10 AC Adapter,Dell 19.5V 4.62A AC Adapter With 1 Year Warranty.Stop lugging your Dell AC adapter back and forth between home and office.Get a second AC adapter for your notebook and keep one in the office and one for home or travel. The 90W Dell Latitude d620 Adapter enables you to operate your notebook or charge the battery from electrical power outlets.
Review”I use my laptop on the road all the time. This power supply is a wonderful add on! It works as it is supposed to do and it is solid as a rock. Great Product. After my Dell Latitude D820 adapter broke on my latitude d620, I first bought a universal adapter from a major electronics retailer. Although, the universal adapter would power my notebook, it would not recharge the battery. After doing some research on the internet, I found that many aftermarket adapters will not charge the Dell’s notebook battery. The good news is that this adapter effectively powers the notebook and recharges the battery. It’s a lot cheaper then Dell’s OEM adapter and it has worked fine for me. “

Dell Studio XPS 16 Laptop Battery In Stock

Posted by admin on September 6th, 2010

For those of you with a Dell Latitude E6400 Battery we have some good news – our first shipment of the Laptop Battery. I own one personally and I’ve seen the battery life dwindle away to now only lasting for around 1 hour max compared to the 4 hours worth of battery life I have been enjoying for the last 2 years or so – time to get back to those good times.

Get your Dell Studio XPS 16 Battery Here – Product Page

Product Description of the Laptop Battery

The Dell Laptop Battery was made to fit the following Dell Laptop / Notebook models:

Specifications of the Dell Studio XPS 16 Battery:

  • Capacity : 4400mAh
  • Voltage : 10.8V
  • Cell Type : Li-ion
  • Color : Black

Battery Tips for Studio XPS 16 Battery:

1. Your new Dell Studio XPS 16 Battery comes in a discharged condition and must be charged before use (refer to your computer manual for charging instructions). Upon initial use (or after a prolonged storage period) the battery may require two to three charge/discharge cycles before achieving maximum capacity.

2. When charging Dell E6400 Battery for the first time your computer may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Simply remove the battery from the computer and repeat the charging procedure.

3. It is important to condition (fully discharge and then fully charge) Dell Laptop Battery every two to three weeks. Failure to do so may significantly shorten the battery’s life (this does not apply to Li-ion batteries, which do not require conditioning). To discharge, simply run your device under the battery’s power until it shuts down or until you get a low battery warning. Then recharge the battery as instructed in your user’s manual.

4. If Dell Laptop Battery will not be in use for a month or longer, it is recommended that it be removed from the device and stored in a cool, dry, clean place.

5. It is normal for Dell Studio XPS 13 Battery to become warm during charging and discharging.

6. A charged Dell Laptop Battery will eventually lose its charge if unused. It may therefore be necessary to recharge the battery after a storage period.

Warranty for Dell Laptop Battery:

* The Dell Studio XPS 13 Laptop Battery has a return-to-base warranty period of 1 year

11.10V,4800mAh,Li-ion,Hi-quality Replacement Laptop Battery for Dell Studio XPS 16, Studio XPS 1640, Compatible Part Numbers: This replacement laptop battery can substitute the following part numbers of Dell 312-0814, U011C, W298C

http://www.laptopbatteryinc.com.au/dell-studio-xps-16.html

How to increase battery life of laptop

Posted by admin on September 1st, 2010

A lot of use are concerned about the dell xps m1530 battery life of our notebook/laptops. While on the move, none of us likes to run out of battery and lose out on precious time. I will give you tips to enhance the battery life without spending a single penny!

Tip 1: Reduce display brightness

The best way to save on dell inspiron 1520 battery life is to reduce the brightness of your display. Display uses up a lot of laptop battery and hence leads to draining of charge faster. You can either set up different power plans for different situations so that you can easily switch between them according to your needs. Other way is to reduce the display brightness manually when you know that you won’t have access to AC power for a longer period of time.

Tip 2: Disconnect external peripherals

Disconnect peripherals connected to external ports of the laptop. External components such as mouse, speakers etc. draw up power from the toshiba laptop battery. Use the touchpad instead of using the mouse. Do not use devices such as laptop cooler which also suck up power.

Tip 3: Use Power Management options

Almost every operating system has inbuilt power management options. Always set the screensaver time to low. Also set low times in power management for “turn off monitor” and “turn of display” options so that if they are idle then they get switched off automatically saving loads of battery.

Tip 4: Turn of speakers, WiFi and Bluetooth

Do not forget to turn off WiFi,Bluetooth if you are not using them. Also mute the speakers to save some crucial laptop battery life.

Tip 5: Monitor running processes

Keep a close eye on the processes running in the background to see the amount of CPU and RAM they are using. Close any unnecessary processes that are using CPU/RAM resources. This can help your laptop to use less power while running.

Tip 6: Use only certified operating systems and hardware

This tip is valid for both software and hardware. Use only certified operating system on your laptop as the hardware has been optimised for it. Also if you plan to add extra RAM/HDD to your laptop then make sure it is truly compatible with your laptop.

Tip 7: Do not leave CD/DVD in the drive

Leaving a CD/DVD in the optical drive leads to unnecessary spinning of the head which consumes power. Remove any CD/DVD from the drive after it is no longer required.

Tip 8: Keep your drivers and software updated

Although this might not lead to significant dell inspiron 1525 battery boost up but still it is recommended to keep your laptop drivers and various softwares updated. Some driver updates bring in changes to reduce power consumption. Also newer softwares are more efficient than previous ones and hence tend to use less of system resources.

These tips can help you to increase your acer as07b42 battery life by a good amount. But as a thumb rule remember to either choose a 9-cell dell inspiron 1545 battery while buying a laptop, if you need longer backup or else buy a spare battery

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