Does continous power damage notebook???

I have bought a dell studio 17 with graphics card and i plan to use it 24x7 so i have to keep it connected to the power supply. will this

1. incerase the chances of damaging de motherboard etc.
2. reduce the battery life

if yes what is de sol (dont ask me to remove de battery and use de laptop as my area has power problems)

 

1. Don't think it will damage the mobo unless there is a power surge/voltage spike. I have had mine connected 24x7 for the last 4 months.

2. Probably yes. It can reduce the battery's capacity to retain charge, etc.
You can checkout the Battery Guide (Nature of Usage, etc) for more info on this.

 

Take out the battery and just run on AC power. Only bad thing is that if you have a power outage, you have no backup power supply.

 

lol... Did you read the OP's post?

 

lol....I guess the OP can get an UPS, if not a spare battery.

 

for #1 dont worry. really..honestly..dont worry. electronics are never damaged by leaving them on and running as they were intended too. in fact thats the beauty of solid state circuitry. no moving parts, hence no wear and tear.

as for #2. yes. your battery will depreciate faster

 

To OP, all others have said and sounds correct to me.

Real world and realistic lifetime no, notebook will be fine. The HDD if mechanical is the most likely to have issues (other than batt). But back to realistic likely hood of premature failure? No.

It will theoretically shorten the life but how much longer do want it to last beyond 5 years? 10 might not even be an issue? Other than HDD and batt those could fail but for everyone in that time frame.

 

would a UPS be better in this case given how UPS's use lead acid (or is it nickel cadium?) batteries instead of lithium ion?

 

i am wondering why battery life would be reduced if it is not being charged? i know it would but just wondering why. i mean theoretically it should not be charging but my past few laptops always had the problems of batteries "overcharging" if i leave it on AC power.

i am now using a sony vaio which comes with a Battery Care Function which supposedly allows you to stop charging the battery at 50% or 80% or some other pre-set %. Wondering if that helps...

 

Heat has a major effect on the ability of batt's to hold a charge. To make your batt last the maximum amount of time? 40% to 50% charge in a fridge around 40F? You cannot make any use of that so not a real solution? It is not just the charging (cycles) consider?

 

you mean i should keep it in the fridge if i am not going to use it for a long time?

previously i had a battery that i charged to full then kept it away for almost a year in the cupboard. later i took it out and slot it in and it is 0% and refuses to charge...

 

That is what happens to batt's. Fridge is better than a cupboard. If you keep in notebook even worse.

I am in no way trying to tell you what to do. I am just trying to inform.

Oh and I might mention the cupboard did not do well? I say fridge. But all Li-Ion batt's die.

 

So whats de final suggestion... sud i keep the battery in de laptop... in that case battery life will be reduced by how much? (i have dell studio 17). i think it will be better than getting a ups!!!

 

Use it and when it dies buy a new one!

 

Read the battery guide.

As for by how much, you'll see that keeping a Li-ion battery fully charged, at 25°C, for a year, makes it lose about 24% of its capacity each year.. At 35°C, the wear increases to around 40%. And while in a notebook, temps frequently reach to over 40 C.

Getting a UPS is the best solution. Store the battery at 35-40% charge, in a airtight bag, at a temp of about 2°C-4°C. AT that temp and charge, wear is around 3-6% a year.

 

Just leave the battery in your laptop. Basic chemistry and electrical engineering will tell you that leaving a battery plugged in does not kill it.
What kills the battery is heat. If your battery on the studio gets warm when its not being used, than you should remove the battery, cause heat will slowly deteriorate the cells in teh battery. If the battery does not get hot under normal ac operation, than just leave the battery inside teh system. The whole freezer thing is a complete scam in my opinion.
I mention heat, only because a few laptops like some of the lenovo series have the battery right next to the cpu cooling system, so the heat from the cpu usually causes teh battery to heat up when the battery is not being used.

K-TRON

 

You do realize you contradict yourself there? You are telling everyone that "heat kills" and refridgerating the battery is pointless. And that this is based on "Basic chemistry". "Basic chemistry" will tell you that cooling a reaction will slow it. Even when the battery is not being used, there will be a slight chemical reaction happening (at least partly accounting for the self-discharge). Storing the battery at lower temperatures will slow this. Also, there are a lot of different chemicals that need to be stored at low temparatures to extend their life.

Also, you say "freezer thing" is a scam. I know I first read about storing LiIon batteries on the Battery University site. But there advise is to keep the battery in a cool dry place. They suggest that sealed in a fridge is OK but very explicitly state that the battery shouldn't be frozen.

Having said that, I do agree with your suggestion. Leave the battery in the laptop and take advantage of it. I think the "40% charge, cool dry place" storage is only worthwhile for long-term storage when you know you won't be using the laptop for a while. In my case that's never.

David

 

Putting a battery in a freezer is indeed a bad idea.. A freezer is usually at -20°C. Which is death to the cells.