Is there a way to improve battery life on a laptop running Celeron M?
102258
One factor is how you use the laptop.  Typing uses the least amount of juice, while connecting via wi-fi uses more.  You can also fiddle with the battery related features, like the other person mentioned display turned dim, HD turns off periodically, etc.
641122
If your notebook has been used on the mains most of the time like citaloraming says fully discharge the battery then charge it overnight Do this for 5 nights on the trot This will now give you the max you can get out of that battery\nHow long a battery will last has no answer as it depends on how hard you are working the machine and what processor is fitted the Standard P4 processors run so hot that 45 to 60 Min's is the best you can hope for Don't forget that a lot of the budget laptops have only 6 cell batteries fitted and again 45 to 60 Min's is around the average Once again do a google search on the model of your laptop and look for the spec on a new model If the battery is more than 2 years old and you are getting 45 mins count your blessing
355709
I always tell people to stay away from celeron processors.  Sure they're cheaper, but you get what you pay for.  A laptop with a pentium M processor is probably going to be smaller than one with an AMD.  AMD processors run a little hotter, so they require more space, but they are also slightly faster.  What I would go for though is the new Intel Core Duo processor.  It has two processing cores on one chip so it's a lot faster.  I think Dell just released an inspiron with one in it.  Apple's got them in a laptop as well.  I'm sure there are also many other companies that are going to have them in their machines as well.  But if you have to chose between the three you listed above, go with pentium or amd.  You really wont notice much of a difference between the two.  Just stay away from celeron.
712535
Buy better batteries and/or external batteries, turn on all the power-save options like turn-off backlight, hibernate, suspend, and so on.
306078
Have a look at Batteries.com.  You can also shop around at Froogle - put in "battery" and your laptop make and model.
433971
you can try for the memturbo software which scans and defrag the RAM. find it out on internet.
456935
You laptop should come with a care and instruction manual. When it comes to actually operating it, it won't be much different than using the computer you are on right now. Just bear in mind that you need to keep the battery charged.
918618
1.  Disconnect the battery physically from the laptop - let it discharge for a few minutes.\n 2.  Put the battery back into the laptop.\n 3.  Boot up laptop and charge battery.\n 4.  Shut down laptop and unplug adapter from wall and laptop.\n 5.  Boot up laptop\nIf the battery does not maintain a charge at this point, it's probably a goner and needs replaced if you would like to do work independently of a power adapter.
6795
check "turn of hard drive" timeout under power management (Right-click destop, properties, screensaver, Power). If it's like 1-2 minutes, amke it 15. Also check other settings, you might find other things that tip the balance from battery life to performance.
112058
There could be issue with the Display. \n\nTry performing Power Drain. \n\nHere are the steps for Power Drain:\n\n1. Disconnect the AC Adapter. \n2. Remove the Battery.\n3. Hold the Power button down for 30 seconds to 1 minute. \n4. Reconnect the AC adapter and do NOT connect the battery now. \n5. Turn on the Notebook power. If the problem persists, please disconnect the AC adapter and connect the battery alone. Now check it again.\n\nTry reinstalling the Display drivers. Also, you can try updating the BIOS version. If the issue persists then, there is sure issue with the display.
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Go to CONTROL PANEL and then click POWER OPTIONS and choose how long you want your computer to be on when you're not using it.
101325
Go to your CONTROL PANEL and into the POWER MANAGEMENT settings.  Adjust the settings for time or to off.
298016
first celeron is to slow for media processing\nyou have to check the speed of your dvd rw \nthe problem is that you have to change it to dvd format
1089761
Very little cost.  :)   Computers use very little power, and electrical power is cheap.  If you left your computer on 24 hours a day, you're probably using roughly 10 cents of electricity in a day.  Turning it on and off is hard on the hard drive.  Good rule of thumb is to turn it on when you go to use it, and leave it on the remainder of the day until you're done with it for the day.  You can turn on and off the screen, that'll increase your screen life.  But turning it on and off a lot puts stress on the hard drive.  Mostly leave it on once it's on.
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If it does exist make sure that it is made by Dell or recommended by Dell.  A second bay battery or just a second battery is a much safer option.  Also look out external universal batteries.  Able to provide upto and over 10 hours.\n\nBattery Wizard\nhttp://www.ComputerBatteries.co.uk
425408
Personally, I'd go with Centrino (which I believe is now called Pentium M).  I don't believe a Pentium M chip is close to 3.0GHz but there are other benefits aside from the reduced speed of the processor.  The main problems that I have with a P4 chip and any laptop is the amount of heat that is generated and the weak battery life.  A P4 chip wasn't really designed for a laptop unlike Centrino, which Intel designed specifically so that laptops would run longer without as much heat.  I think that's more important.  If you go ahead with the P4 chip, I would definitely make sure that the heat and the low battery life aren't going to be annoyances to you.  There are also more features to Centrino than just these but that's beyond the scope of this question.  Anyhow, most laptops are coming with 512MB RAM, which should be plenty for most common tasks.  If you consider yourself a power user, you may want to go with 1GB.  I'm not too familiar with laptops that come with AMD chips...I've actually never heard of any.  And Pentium is always better than Celeron.
143286
Sure! Make sure any scheduled tasks use the advanced mode to bring system out of standby.\nSTART, ALL Programs, Accessories,System Tools,Scheduled Tasks - then choose:\nProperties, Settings, Wake the Computer to run this Task