Running the laptop always on AC power

I own a S1555 from Dell. Currently i am using the laptop on AC power which is supplied by an UPS. I have removed the battery from the laptop. I have connected the laptop to the UPS because even in the case of power failure, the working will be uninterrupted.

Now my query is, will it harm the laptop in the long term? I read about the laptop overheating in other forums, but strangely mine does not overheat, although i keep mine connected to AC power 24x7. I do all sorts of stuffs like gaming (the most recent one was GTA 4) and word processing on the laptop.

Yes, i am providing adequate ventilation, maybe that is one of the reasons why the product is not getting over heated.

Any insight on the matter will be appreciated ..

 

If anything, your system will run cooler without the battery, since it's not constantly being trickle-charged. You'll be just fine.

 

Well you're using a UPS so I presume that voltage fluctuation is not an issue (People from some countries might find this weird but it is a major issue here)
As for the heating issue you're damn lucky mate...my studio 1555 is getting replaced within 15 days because of overheating...and yes i do use it on a desk and maintain good ventilation

 

Li-Ion batteries do not get trickle charged constantly. Trickle charging is something that happens to other types of re-chargable batteries. It's easy to get confused though as the battery does get charged once it reaches a certain power level, but this is not the same as trickle charging.

Basically, Li-Ion batteries are unable to absorb overcharge, and therefore having them trickle charge will damage the battery. Therefore Li-Ion batteries instead have charge "bursts" which causing charging to commence once a certain level of discharging has occurred.

However, there will likely be some truth to the fact that the system may run cooler, as there is going to be increased heat disappation due to the removal of the battery.

As to whether this is going to do your notebook any harm. This is unlikely. There is of course the concern that there may be parts of your notebook internals exposed via the battery being removed, but this is probably quite minimal. As you are utilising a UPS, there is minimal risk of losing power, so I'd say that you are likely to have no problems.

Make sure you store your battery well also, as this will aid in it's lifetime. Note that even though you are not using the battery, it is still degrading - Li-Ion batteries degrade from the moment they are produced until the moment they die, regardless of use or not.

 

I have a 9 cell which helps with cooling as it sits the laptop up on the back end enabling air to run under. There is also the option of keeping the battery in and disabling charging it via the power options where it has a little airplane next to it. Check out this thread http://forum.notebookreview.com/showthread.php?t=383238 I belive if the battery is in place but its not being charge it wont create any extra heat?

 

I have a 9 cell which helps with cooling as it sits the laptop up on the back end enabling air to run under. There is also the option of keeping the battery in and disabling charging it via the power options where it has a little airplane next to it. Check out this thread http://forum.notebookreview.com/showthread.php?t=383238 I belive if the battery is in place but its not being charge it wont create any extra heat?

 

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Thanks for the informative posts guys !!

 

Some 9 cell batteries will indeed raise the height of the notebook; but most simply protude out at the end and do nothing for the vertical profile.

When I say that taking the battery out may indeed decrease heat, I mention this because of the fact that there is now less physical substance (i.e. the battery) to stand in the way of heat dissipation.

Charging batteries themselves of course can generate heat, this in the case of Li-ion batteries is produced typically by the carbon anode. Recently (ish) there have been investigations into using alternative materials in place of the graphite, which have shown improvements in most areas of operation for Li-on batteries, including a lower level of heat generation ( see link).

However, if you are operating your laptop on AC power, then the battery discharges itself at a relatively slow rate - meaning that heat generated from charging the battery is going to be incredibly insignificant.

Much more significant though, is the fact that having the battery in place next to other heated components in a confined space will have a negative impact on the batteries life.

Regards