Leave the Battery In or Out

I suppose this applies to all laptops, but since I have my T400 connected to the power supply almost exclusively, should I leave the battery in or out?
In other words, is the battery aging faster because it's in a constant state of charging (In) or would it last longer if I removed it while the computer connected to the power supply?
Thanks.
Solved!
Go to Solution.

leaving the battery in won't hurt it, if you don't use your battery that much keep the battery at around 40 to 60 %. So go into your thinkvantage power manager under battery maintenance. Set the minimal charge level to around say 20% and maximum charge level at 40 to 60%.
Now unplug your AC power, then run the battery to around 60%, then replug back your AC power. This should maximise your battery life.
Also, if you use the 65 watt adapter, the laptop would speed throttle (CPU speed will be capped) if you don't have the battery plugged in. 
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

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  • HT4557 i just had a new phone today,,i have setup my phone and charged it 100% but the battery is running out very fast.any idea why it is happening ? would really appreciate your help thanks

    i just had a new phone today,,i have setup my phone and charged it 100% but the battery is running out very fast.any idea why it is happening ? would really appreciate your help thanks

    Here are the iPhone battery conservation tips.
    iPhone
    Watch some of the things you may have set up as the article suggests.  Check email fetch frequency, push notifications, location services, etc.

  • Even with the upgrade the battery is running out very fast.

    with the new update does nothing to solve it the battery is running out very fast

    OK.  Thanks for sharing.  Now maybe you can search the forum to see what others are doing to help conserve battery life.

  • I have a canon rebel t3, i dropped it and the battery door fell out. Is it possible for it to work

    So basically I have a canon rebel t3, I recently dropped it(not that hard) and the battery/memory door broke of. I put it back and it worked except I don't think it 100 percent worked. My camera haven't been working since that day. I'm not sure if ive seen the camera battery door inside the battery I can see the inside to where you connect the door kind of chipped. I tried to put it back in and unexspectdly the little part of the camera's battery door chipped. Is there any possible way for the camera to work without the battery door? will i have to get it repaired at a store for money? can there be any home-treatment i could do? THANKs

    Sorry!   But it needs to be reapired by a service center.  There may be other issues inside you are not seeing right now and in the long run it will never be dependable until it is checked out.  Caneras don't like being droped, even a little, and they don't like being wet.  Two, no-no's.
    EOS 1Ds Mk III, EOS 1D Mk IV EF 50mm f1.2 L, EF 24-70mm f2.8 L,
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  • HT4060 What's best for maximizing the life span of the battery, to run out the battery before charging it again or to charge it before it drains out completely?

    I usually charge my iPad after all the battery drains out but someone told me it damage the software so I wanna know if draining out the full battery is good or not. Thank you.

    Lithium based batteries as in the iPad do not respond well to repeated draining.

  • Battery - Does the iPod run off the battery when coming out of 'deep sleep'

    Hi,
    I was listening to my ipod yesterday and it ran completely out of battery. No worries - I thought I would just charge it up. I am travelling right now and the only way of charging it is by docking it in some speakers. I did so and it started up as normal, showing the apple logo. Then the screen went brighter, as normal, then it just cuts out. I thought maybe its just the battery, so I left it for a couple of hours and tried again - same thing happened.
    When it is coming out of the 'deep sleep' is it running of the power of the battery - even when it is on charge? It appears like it needs to turn itself on - and THEN charge. If this is correct it is a pretty poor design fault. Can any one help me with this?
    Could it be that its not getting enough power through the speakers?
    Thanks,
    Phil
    Dell   Windows XP  

    bump

  • HT1349 My computer won't turn on. Makes a low beeping noise that I've never heard but the screen doesn't turn on. The battery ran completely out but I've had it plugged in for 2 hours. Any thoughts?

    I have a MacBook pro. After running the battery down, the computer won't turn on. It seems to cycle on but then makes low beeping noises and the battery indicator light blinks along with the beeps. I've had the computer charging for quite awhile. Any thoughts?
    Jeannepo

    UPDATE:
    My computer now works but still has the loading bar at startup. Here is some advice for other mac users with the same problem. To get the computer to turn on again (but unfortunately still have the loading bar - you will need to fix this problem seperately) follow these instructions:
    Shut down the computer.
    Unplug the computer’s power cord and disconnect peripherals.
    Press and hold the power button for 5 seconds.
    Release the power button.
    Attach the computers power cable.
    Press the power button to turn on the computer.
    This is called a SMC Reset and will hopefully get your computer back up and running (at least for the time being!)
    Good luck to all those iMacers out there!
    SubtleMonster

  • Adaptor won't power my PB: the battery is running out!

    I was wondering if anyone found a solution to the problem below that I found in this forum. I am having the same problem and don't know what to do. Just wish that this wasn't an internal problem.
    ========================================================
    I've got a 1.33Ghz PowerBook G4 15" and I am having problems with the AC adaptor.
    When I plug the adaptor in, the light on the adaptor turns orange but won't charge the battery or power the computer - it will only run from the battery. If I wiggle the connector where it plugs into the computer then the light goes green but still won't power the computer.
    The connector where it plugs into the computer feels quite loose, do you think replacing it would work, or is it an internal problem?

    When you say connector are you referring to the port that you plug the adaptor into ON the computer? THAT is loose? Or are you talking about the plug part?
    Did you ever get your problem resolved?
    All of a sudden I'm having an issue when I plug the adaptor into the port it glows for a brief second and then it stops, so it's not powering or charging my powerbook. I can't use it because there is only 4% battery life left. I don't know if it''s the adaptor or the PB itself...nothing is loose. But I'm a little annoyed because this computer has only been lightly used as a backup, so it's practically brand new and a little premature for things to just stop working...
    I can't remember what OS and I can't check right now. It's over a year old.

  • HT1430 my IPad 2 has gone off, I have tried all the usual things, it is 3 years old, is it possible the battery has worn out, and if so how expensive are they to replace

    My apple 2  appears to have died ,is ir possible the battery is dead, and how expensive are they to replace?

    I'm adding more information:
    in Finder, my iMovie folders are all visible and accessible.  When I click on a clip from iMovie Events folder, Quicktime opens and plays the clip.  ALL my video is not missing - it just isn't showing up in the Event Library!
    This happened all of a sudden, while I was working on iMovie project (on both computers).
    All my Projects are intact, and play when I open them. 

  • I have lost my ipod and the battery has run out

    help please

    (glad you appreciated it.)
    Unfortunately, it's simply a matter of physically looking for it, and start by (as Squishpoke suggests) remembering where you were when you last saw it.
    It happens to all of us, when you mislay something, you have to look for it and there's no magical method for an iPod that has run out of power.
    ...and if I applied a metal detector to my face,  I guess it would bleep due to the tooth caps in my mouth!

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