Should laptop power adapter always plugged in?

[eshban]

A have Dell Studio 1535 laptop... when battery is 100% charged it say something like.."The power prefrence you are using may cause of reduce your system performance"..
So the question is this... Should laptop power adapter always plugged in? (Even after the battery is 100% charged)..or it does not metter..

[ice_724637]

Check if your battery is a lithium-ion. These cannot be overcharged and should actually be kept at a high charge level whenever possible. They do not suffer from 'memory effect' so they do not need to be discharged completely before a recharge.

If you use your laptop as a desktop replacement (i.e. you do not need the battery), keep the battery stored in an air tight container or plastic bag (so that it stays dry) and keep it in the refrigerator. This will extend your battery's life.

I'm guessing that the error message has completely different origin altogether:

The 'power profiles' that windows let's you select, don't only effect the time until the monitor turns off etc., but also how your cpu reacts when on battery power or when plugged in to the mains.
This article should help you:
http://www.orthogonalthought.com/blo...ower-profiles/

First set the scheme you want your processor to use and then select the time until your monitor turns off etc.

[ice_724637]

You can also:
Use CPU-Z(not very accurate on laptops that constantly switch clocks) to check cpu clock or even better, if you have a Core2Duo, then use rivatuner and the C2D plug in to get accurate clocks, usage and temperatures. You can also use Super-Pi to put some load on your processors and see how the cpu clocks change.
Links:
http://www.cpuid.com/cpuz.php
ftp://pi.super-computing.org/windows/super_pi.zip
http://downloads.guru3d.com/RivaTune...nload-163.html
http://downloads.guru3d.com/Rivatune...load-1545.html

Hope that helps a bit.

[uiojkl]

i always plug the power adapter directly without the battery.Your problem maybe caused by the settings of the power profile.

[Renegade8100]

i keep my laptop plugged 24/7 without battery. otherwise i have 3 batteries lol

i think you are referring to your power profiles, you can edit them how you like. most of it is basically power down your hd, lcd, w/e after how many nano seconds.

[flatpyramid]

So which is it Guys is it okay for the laptop to be plugged in even if the battery is 100% charged?

I have a Li-ion Battery Pack a32-a8, and I always keep the laptop plugged in even if the battery is 100% charged. I'm just a bit worried for it might cause me trouble in the future.

[ice_724637]

Laptop batteries have overcharge protection circuitry built in to them. So you can't overcharge them.
What really wears out batteries is frequent charge and discharge. Batteries only have a limited amount of cycles, but also a limited lifespan time wise. A few 1000 cycles or 2-3years if I remember correctly.

It won't cause you trouble to keep your battery in your laptop at 100% charge all the time, but it will shorten it's lifespan considerably.
I've seen test results that indicate that one should keep the charge of the lithium ion battery as low as possible when stored and more importantly at a temperature as low as possible as long as the electrolyte does not freeze. A laptop that gets warm is not ideal. A fridge is a good idea. I've put lithium-ions in the freezer before and the housing cracked, but still worked fine, but I DO NOT recommend it!
Remember to let your batteries warm to room temp before using them again.
Also don't let the battery's charge drop too low, otherwise they won't be able to fully charge up again. Protective circuitry prevents this during normal use by cutting power. Through passive discharge in the fridge however a battery's charge can drop below this level.

CONCLUSION:
If you need your battery regularly (on the go or as ups) leave it in your laptop.
If you don't need your battery wrap it in a sealed plastic bag and put in in the fridge at least half charged and check the charge every 3 months.

[flatpyramid]

Thanks for the sound advice ice... Im always on the go and bought 1 more spare.

[lmimmfn]

i have my work laptop plugged in with the power 90% of the time, i never unplug the batter but it cant be good for it lol, on battery number 2 after a year lol

[CJ3D]

Its ok to keep it 100% charged all the time, but you should discharge it at least once every fortnight.