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Laptop battery life low?

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Old 04-10-2011, 06:55 PM   #1
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Here is my laptop

ASUS N71VN A1 Specs (Core 2 Quad Q9000 2 GHz, 17.3" TFT) - Laptops - CNET Reviews

Is there a way to see if my battery is shot? I reinstalled Windows today and when the laptop idles it says I have 3 hours left on my battery. If I put in the recovery discs and start the process it bounces down to 1 hour. That doesn't seem like much. The preference is on "balanced" for power management.
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Old 04-11-2011, 01:27 AM   #2
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how long you have the laptop ? laptop's batteries dont last long even in idle . mine lasts less than an hour , about 30 minutes.
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Old 04-11-2011, 01:48 AM   #3
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sounds normal to me, the more the computer works, the faster the battery will drain. that is why installing an operating system on battery power is its never recommended.
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Old 04-11-2011, 06:04 PM   #4
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Had the laptop since 2009 December. Always used the AC adapter for it.
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Old 04-11-2011, 06:09 PM   #5
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this is normal, the computer basis it off how hard it is working and how much battery it has, if you are doing something intensive just use the power cord.
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Old 04-11-2011, 06:40 PM   #6
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i would read this sticky if you haven't already.
https://www.techsupportforum.com/foru...er-542731.html
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Old 04-12-2011, 12:00 AM   #7
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Quote:
Originally Posted by StevoK View Post
Had the laptop since 2009 December. Always used the AC adapter for it.
1,5 years old . your laptops battery life is better than normal in my opinion !
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Old 04-12-2011, 02:24 AM   #8
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hey your laptop battery is low because as time passed, the battery which is lithium-ion battery and inside the lithium ion battery the electrode from the negative electrode to the positive electrode during discharge, and back when charging. After a long time, the electrode become not charged so thats why it is causing the battery to lower each time. if u continue charging everytime, it also can cause your lithium ion battery to lower life.


Tips on how to save a lithium-ion battery life

1. Ship shape with a defrag

Regular defragmentation helps to arrange data more efficiently thus making the hard drive work less to access the data. The quicker the moving hard drive works lesser is the load placed on the battery. Thus, your batter can last longer. The effect is minimal, but this efficiency goes hand in glove with hard drive maintenance.

2. Kill the resource gobblers

End the background processes that are not vital. Monitor the resource usage through a “˜Ctrl-Alt-Del’ which brings up the Windows Task Manager (in Windows). If you’re not on the internet, it is safe to shut down the immediate non-essential programs running in the taskbar like the antivirus and the firewall. Weed out unnecessary programs running as start-ups by launching the System Configuration Utility from Run ““ Msconfig ““ Tab: Startup. Uncheck the programs which you don’t want to launch and reboot the computer once.

3. Pause the scheduled tasks

It may be a defrag or a virus scan, but make sure it is scheduled for a time when you are near a power outlet. If not then nix them for the moment.

4. Unplug external devices

USB devices are the biggest drainers of battery power. Unplug all external devices like an external mouse, PC cards, Wi-Fi, external speakers, Bluetooth and even an attached iPod.

5. Empty the CD/DVD Drives

Even if you don’t intend to use it, don’t leave any CD/DVDs as leftovers in the drives. A spinning drive sucks battery power like a sponge.

6. Go local

Desist using the DVD/external drives while running on batteries. Shift the content to the hard drive or run using (free) virtual drives like Pismo File Mount or even Microsoft’s Virtual CD ROM Control Panel.

7. Lower the lights

The LCD screen of a laptop is another huge power sink. Calibrate the brightness to the lowest level you can tolerate using the Function key toggles or using the Display Settings applet in the Control Panel.

8. Kill the sounds

Mute the speakers and try avoiding the use of multimedia software to maximize the battery life. Installed sound schemes also drain a battery perceptibly.

9. Rid the screensaver

To maximize battery life by a little, switch off the screensaver.

10. Visit Power Options

Get familiar with power management through the “˜Power Options’ applet in the Control Panel. Both XP and Vista come with advanced power management features which shut off components like the monitor and/or the hard drive after specified intervals. This again depends on the chosen “˜Power Schemes’ (for XP) in the same applet. For instance in XP, “˜Max Battery’ under Power Schemes can be selected for maximum battery optimization.
Similar settings can be found under “˜Mobile PC’ in the Control Panel of Vista.
11. Turn off the looks

Today’s OS’s like Windows Vista come with features like “˜Aero Glass’ which are resource guzzlers. One can turn it off and go for the “˜Classic’ appearance which consumes less power. In Vista, click on Desktop – Preferences – View Colour – Appearance – Classic Appearance and Windows Basic graphical interface. In XP it’s – Display Properties – Theme – Windows Classic.
Linux and even Macintosh are better optimized for longer battery life.

12. Hibernate is better than Sleep

In the Stand By mode (or sleep mode), the computer turns of the hard drive and the display but memory remains active while the CPU slows down. This draws on the battery. In contrast, hibernation mode is better because the computer saves the current state and shuts itself down completely thus saving power.

13. Get the most…work on the least

Working on too many programs while on the battery is a sure fire power drainer. Keep use of graphic intensive applications to a minimum. Working on a spreadsheet consumes much less than playing your favourite game. To increase the life of the battery open just one or two programs concurrently.

14. Ram in more RAM

Adequate RAM reduces the load on Virtual memory which by default resides on the hard drive. Though every extra bit of RAM uses up more power, it increases overall savings by short cutting access to the power hungry hard drive.

15. Keep it clean

A laptop with blocked air vents will generate more heat thus reducing the life of the battery. Clean the air vents regularly to keep operating temperatures low. Allow for open space around the vents for air to circulate freely. Keep the area around the laptop clean to avoid entry of dust.

16. Temperature is a silent killer

Undue heat kills off a battery slowly but surely. Avoid leaving the laptop under direct sunlight or inside a closed car.

17. Avoid the memory effect

A problem more for the older Ni-MH batteries than for Li-Ion batteries on which most modern laptops run. Memory effect relates to the loss of battery charge when they are repeatedly recharged after being only partially discharged. It can be prevented by discharging the battery fully and then completely recharging it. Li-Ion batteries on the other hand have no problems with partial discharges and re-charges and complete discharge is never recommended for this type.

18. Update software and drivers

This sounds a bit incongruous but then newer drivers and software are often designed to be more efficient (and hopefully less resource hungry).

19. Use the right adapter

Ensure that the adapter you use to charge the laptop battery is an original one or one with the correct specifications. A mismatch in the wattage could cause an overload thus damaging the laptop and the battery.

20. Pack it up

To keep ur battery from losing its life, charge it till 40% , remove the laptop battery and put the battery in a cool place ( refrigerator ).

HOPES IT HELPS
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Old 04-12-2011, 02:40 AM   #9
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Hey i have a doubt...
When u use a laptop while charging, does it decreases battery life??
Some say charging has two channels one to the battery and other to the lappy, so while charging laptop doesn't use battery. Some say it decreases the life..
So which one is right?
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Old 04-12-2011, 02:40 AM   #10
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everything you have written are extremely usefull Riolaw , but even if he use all 20 tips
his battery life will last 20 minutes the most more than usual . thats my opinion tho , im not saying not to try the tips , just dont have high excpectations ! :)
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Old 04-12-2011, 02:45 AM   #11
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Quote:
Originally Posted by srinath29 View Post
Hey i have a doubt...
When u use a laptop while charging, does it decreases battery life??
Some say charging has two channels one to the battery and other to the lappy, so while charging laptop doesn't use battery. Some say it decreases the life..
So which one is right?
yes when you are charging and using at the same time, it will decrease battery life and if charging the battery do not use the laptop and it will not decrease battery life.
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Old 04-12-2011, 03:19 AM   #12
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never use the laptop on the charger all the time....when the battery is completely charged use it on the battery..
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Old 04-12-2011, 03:20 AM   #13
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using laptop on charger al the time overcharges the battery & shortens the battery life & backup..
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Old 04-12-2011, 03:27 AM   #14
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About the only thing I think you should be relying on isn't the amount of time left, but more along the lines of the battery percentage or the readings. The amount of time is only an estimate based on the amount of drain on the battery. So as you use a power saving profile, it shows a bigger figure, but when you start using a high performance profile it begins to go down. When I am running on battery for an extended amount of time, I like to use something less powerful which already fits my performance needs. But once I am plugged in, high performance all the way.

I would have to say that the monitor and its brightness is one of the biggest impacts on battery life. Which is why I make my computer not go into standby when I put the lid down, so I can do it often as needed without being disruptive.
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Old 04-12-2011, 03:29 AM   #15
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Quote:
Originally Posted by [email protected] View Post
never use the laptop on the charger all the time....when the battery is completely charged use it on the battery..
Actually, as long as you completely discharge the battery and fully recharge it once a month, you should get an appropriate amount of life out of your battery. By charging it and discharging it constantly, you are putting more strain on the battery, and you are costing maybe 150% more on electricity use.
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Old 04-12-2011, 03:44 AM   #16
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using laptop on charger all the time overcharges the battery & shortens the battery life & backup.. just as in case of a mobile battery.. do you keep the mobile on charge all the time..?? no right?.. you charge it only when required.. but still you draw good backup & battery life.. same way if you use the laptop on battery when it is charged.. the battery life will be good & battery backup will be good as well.. the battery used in both the cases (Laptop & Mobile) is Li-on (Lithium Ion).. so they behave in same manner..
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Old 04-12-2011, 04:35 AM   #17
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Quote:
Originally Posted by [email protected] View Post
using laptop on charger all the time overcharges the battery & shortens the battery life & backup.. just as in case of a mobile battery.. do you keep the mobile on charge all the time..?? no right?.. you charge it only when required.. but still you draw good backup & battery life.. same way if you use the laptop on battery when it is charged.. the battery life will be good & battery backup will be good as well.. the battery used in both the cases (Laptop & Mobile) is Li-on (Lithium Ion).. so they behave in same manner..
Over-charging occurs when the charger keeps the battery at a temperature that is warm to touch (body temperature) while in ready condition.
Li-Ion laptop batteries have built-in controller chips which prevent it from overcharging, as they can explode if overcharged. Overcharging does not affect the life span other than potentially destroying the battery.

What Happens If A Laptop Battery Is Overcharged?

Do you have any information to support your claim?
New topic?
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Old 04-12-2011, 04:39 AM   #18
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Quote:
Originally Posted by Jay_JWLH View Post
Over-charging occurs when the charger keeps the battery at a temperature that is warm to touch (body temperature) while in ready condition.
Li-Ion laptop batteries have built-in controller chips which prevent it from overcharging, as they can explode if overcharged. Overcharging does not affect the life span other than potentially destroying the battery.

What Happens If A Laptop Battery Is Overcharged?

Do you have any information to support your claim?

i agree with jay because if the mobile is fully charged and leave it on the charger , the charger is cool !! that means its not charging
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Old 04-12-2011, 04:44 AM   #19
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Quote:
Originally Posted by konefsta View Post
i agree with jay because if the mobile is fully charged and leave it on the charger , the charger is cool !! that means its not charging
Connected or Disconnected when on AC Power?

Things to consider if:

You are removing the battery while on AC power:
Pros:
  • Preserves charge cycles
  • Keeps the battery temperature lower thus slowing the aging process
Cons:
  • Lose the battery as backup power during power outages and voltage drops
  • Unsaved work will be lost and data may be corrupted without backup power
  • UPS (uninterruptible power supply) needed to serve as backup power source

You are leaving the battery connected while on AC power:
Pros:
  • Battery serves as backup power during power outages and voltage drops
  • More convenient for “grab-and-go” use
  • Battery doesn’t require sufficient warming time (as it would after being stored in the refrigerator)
Cons:
  • Loss of charge cycles
  • Battery’s temperature is higher on AC power resulting in accelerated aging


Notebook Battery Guide

It seems.... the truth lies in between the lines.
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Old 04-12-2011, 04:53 AM   #20
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go to link : Laptop Battery FAQ | Dell Asia Pacific .. read this "Do not store batteries for long periods plugged into or attached to any power source. This includes AC adapters and laptop security carts plugged into an outlet." while some points suggest that it does not harm the battery....this points says that to make the battery last longer..Do not store batteries for long periods plugged into or attached to any power source. This includes AC adapters and laptop security carts plugged into an outlet....
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