Is it dangerous for my laptops lifespan to keep the laptop plugged in 24/7 while keeping the battery in?

I'm not to bothered about the life of my battery because this is a home based laptop, what I am worried about is the lifespan of the laptop itself not the battery.

is having both of these things on going to kill my laptop faster?
I have a surge protector.

I was told by a friend that keeping the battery in protects the mainboard that might be exposed a little.

 

No.

10 characters

 

on a side note your battery takes very little damage sitting in your laptop as well. You'll waste more time trying to save it than its worth. Also if its plugged in 24/7 its safer to keep battery in there because if power goes out your laptop doesn't loose power and that'll actually help protect it.

 

Theres no reason it will damage the motherboard.

Keeping the battery in naturally turns it into an standby UPS so i suggest keeping it in there.

 

It doesn't affect the motherboard but the battery will die faster due to the excessive heat. If you are always plugged in think about removing the battery and storing it in a cool place. Only downside if your laptop gets unplugged by accident it shuts off.

 

The heat the battery takes should be minmal...my battery doesn't feel much warmer than room tempature. Now if some weird reason your laptop is terrible and it makes the battery super hot than sure remove it but other wise the "luke warm" battery is nothing to worry about. It will cause very little damage.

it is over emphized. in my opinion.

 

Except when you are gaming? Or you have one of those ginormous G73 ASUS notebooks, I can assure you it gets hot. Do it for the sake of your battery.

 

my laptop is a beast even when i game it doesn't get very hot but i get what you mean. I definately say its a case by case situation

 

I have the battery in on my D830 which is used as desktop replacement(rarely used without wall power) and after 3 years, the battery can still last for 4 hours something so there doesn't seem to much lost of life.

I would definitely leave it in as the function of an UPS is way more important than the battery life.

 

I agree with Tsunade here, keeping your battery in your laptop is not recomended if your laptop gets very hot during gaming. Aside from that, I think its always best to keep your battery out of your laptop @40% charge to preserve its life when you don't use it (mine is a desktop replacement anyway).
So, in short in only matters to the batery itself, not the laptop.

 

This tells you the temp you want to store it at for long periods of time. It also tells you that its max discharge temp is 60C...thats really hot and it should never ever get that hot under practical use. Also -20~20C is for 1 year storage, which 20C is 68 degrees fahrenheit. Thats barely lower than most room temps.
Li-ion 18650 Cylindrical Rechargeable Cell: 3.7V 2800mAh (10.36Wh) --LG Brand, UN Approved

I do not know the reliability of this website but these numbers are higher than I have heard before. I will email this to batteryspace tonight to see if they can clarify if these numbers are accurate. I doubt they lose this much capacity. chimpanzee is evidence enough that I think that these numbers are off. I had a laptop for 6 years and it still had like 50% capacity with it in 24/7. Granted I think that was way on the lucky side but I think those numbers are too high.(as in it shouldn't lose that much life) My laptop has been on for the ~260 day out of ~365 days and I still have nearly 100% capacity. And the battery has been used a lot as well. Maybe a good 60-80 cycles and many partial cycles.

EDIT:Something I do not know is if there is any differance of lose of power capacity from the battery being left in the laptop while plugged in or when its at 100% charge just sitting out. I do not know if being plugged in is worse or not as worse. That is something i'll ask batteryspace as well...if i remember. Also it is 100% definately best to leave it at ~40% for storage. You also need to recharge it and redrain it once in a while. Because that 40% will loose power over the months. I think its about every 6 months that you want to recharge it and redrain it to 40%. Do not quote me on that one because i do not remember. Note, it also depends on the temperature whether or not you need to recahrge and drain it like every 3 months or 6 months or every year. You would have to calculate the average temperature of the area it was stored in with the average rate of self-life loss with when you would need to recharge and drain it. That formula would tell you how long you could let it sit before you had to redo the cycle. Note again, that by doing this it will reduce the loss of capcity. So this will in return make the battery last longer. So if its at 20C temp and you recharge and discharge back to 40% every 6 months you will loose less capacity than that chart says. Because it's counting that the battery is never cycled to keep a stable 40% charge. Do you understand or have questions?
Storing and priming of batteries


EDIT: Also i am sure my battery has taken lots of damage. My battery discharges very fast because its only a 6 cell and my laptop requires a 120-150watt psu. I have even crashed my laptop and battery while attempting to run a benchmark and stress test on battery....bad idea -_- I only get 60-70 mins at best with battery....usually i get like 40-50 lol. I also have drained it in like 20mins once playing a game...that causes a lot of damage lol. Also the stress test said the battery had 18mins of life with that amount of power being drain...hence why it crashed -_- Now it shouldn't have cause too much damage because Li-ion batteries have a PCM/PCB which shuts off the battery before damage is done. That is why it shut done. It was the PCM/PCB doing its job. Also its perfectly fine to run the battery to 7% and then hibernate. That’s what I have min set for. The PCM/PCB will kill the battery and your laptop before any damage/significant damage is done.
On a side note, if you keep trying to turn it on after the PCM/PCB shut off the battery you can still be damaged because the PCM/PCB takes time to register the information from the battery. For an example, my li-ion drill is very easy to damage the battery. If your drilling and the drill shuts off mid drilling that means the PCM/PCB kicked in. I have read reviews of people saying the battery wouldn’t recharge. That is probably because they drained it dry and then kept trying to use it after the PCM/PCB kicked in. You can use it and it’ll shut off at the lowest safest voltage and than if you try redrilling again it work for like 10-30s and shut off again. That is because the PCM/PCB can take a few seconds to kick in because it can’t instantly tell if the battery lvl is low. If you do that too many times it’ll take the battery to a voltage lower than it can recharge. This will make the battery useless and unable to recharge. It is possible to get the battery to recharge but you need a special charge to try to do a slow deep charge.



EDITAlso note, that LiFePO4 batteries do not suffer from most of these things. Their self-life is far better and if i remember correctly they do not loose capacity any faster fully charged or at 40% charge. I am not 100% sure of this but i beleive i read this somewhere. I am sure that LiFePO4 batteries have much better loss of capacity and cycles. If you use a LiFePO4 battery at 0C you get 2000+ charges before its at 80% capacity campared to the regular Li-ion battery, which gets 300 or so.



Also sorry for getting so far off topic but it's important to know these things because it'll help you decide on what you want to do with the battery in various situations.

 

Well I thought it's not about the cells but the rated Watt Hour of the battery, although usually they go hand in hand.

Which is why my Latitude 13 confused me at first, as it has a 6 cell battery but is only rated 30 WHr as my Vostro 1500 battery is 9 cell but is rated at 76 WHr which gets me 4+ hours battery life.

 

How to prolong lithium-based batteries

 

there are many different types of lithium ion and sizes and capacity. Your 6 cell with 30Wh, which is very low cacapity. The best 18650 cells(most commonly used cell in laptops) i have seen are the liCoO2 cells and they can hold a little more than 10whr a piece. So your 6 cell is half of that capacity. Assuming its 18650 and not a different size cell. From batteryspace.com its best bang for your buck cell holds 9.xxWh for a 18650 cell for 9 bucks.


Also note that yes its true that a partial charge does less damage to the cell but realize that you technically get more juice and use out of it with full charges. check this out:

Note these are not real values! They are made to make a point
Figure you you use the battery to 40% and than recharge. This give you 500 recahrges before the battery dies and takes 3 years to die. This gives you 300 full uses.

Now figure you use 100% of the battery every time and get 350 recharges. This give you 2 years of life. This gives you a total of 350 full uses.

so yea you get a longer battery life but you get less total capacity use out of it. 300 vs 350

Now remember that these are made up figures but it is true that you get more juice for your use by full/near full discharges as long as you don't pass the PCM/PCB

My only point here is that you use it however suits you in a situation. DO NOT worry about your battery life that you force yourself to stop what your doing so you do not use the battery past a certain point. You are just causing more trouble for yourself than its worth. The main important things is not using it on beds or in super hot areas....comon sense. Also if you do not use it for more than a month drain it to 40% for safe storage. Those are the only two rules that are honestly important. The rest is just wasting your time and energy. It's like it's cheaper to walk 3 miles to the grocrey store so i'll take 30 mins to walk. Thats dumb because it'll take 4 mins to drive there and will only cost your 3 dollars in mileage...just be smart about stuff.

Again leaving it in your cumputer will cause trival damage....its honestly not worth your time to take it out and put it back in. Now if you got a spare ups laying around obviously that makes a totally different situation ^^


Also on topic ^^ its safer for your laptop...just to reitterate that. Did i spell reitterate right -_-

 

Walking 30 minutes to the gorcery store is not dumb, it is very smart. Think about the health benefit

walking 3 hours may be(or may be not)

 

I was referring to the difference in time and money. Or how about this. Which is smarter? Walking to the story which takes 30 mins or riding a bike, which would take 10 mins? Is that better....spending 50 bucks on a bike would be a much better route

 

DCMAKER:

From reading yours posts you do understand the jist of things pretty well (albeit long winded and a bit confusing at times, but hey it’s difficult to write about said subjects in clear and concise fashion all the time). These types of discussions on usage and storage of laptop batteries is ongoing on these forums and I see two types of “school of thought”. The first is if you are not using your battery remove it, and store it as what is typically explained at around 40-60% of full charge, then put in a bag and throw in the fridge. The second thought is to use the battery and not worry about it.

I squarely fall in the second school of thought. Batteries are consumables, they are meant to be used. If you leave it in your machine it acts as a good UPS, without the cost of a real UPS. If someone is worried about the cost of replacing it try putting $10 bucks aside once a month, in a year’s time you can buy a new battery. ($10 bucks; that’s equal to 3 lattes or one trip to the local fast food burger joint, if you cannot afford that how can you afford a laptop in the first place) I would think most manufactures will warranty a battery for one year when new, so no money lost there. Really I do not understand the obsession I see of people worrying about laptop batteries.

PS: Per my IM look here, if your wondering what spice is:

SPICE - Wikipedia, the free encyclopedia

 

Certain manufacturers only warrant certain things about batteries.

HP/Compaq, Dell, Gateway/Acer/Emachines require the battery to be completely defective or like a 6 cell to completely drain out in 10 minutes, we can then do a SR for a new battery.

Sony requires the battery to be completely defective, even then they are picky about it.

I haven't done an SR for Lenovo but I would hope for the first scenario.

The way I see it, I want to use my battery smartly. Yeah in college I was an idiot leaving it completely charged and plugged in all the time and gaming. Thus my Vostro 1500 battery completely died right after 2 years of purchase. But it served it's purpose.

 

Of course manufacturers will have conditions for warranty replacement, the battery will need to exhibit the signs of being near to totally spent, which is fine.

If you got 2 years out of the battery your doing just fine, I would not complain about that. My Asus still has 1-1.5 hours of run time left and its been used plugged in all the time and is 4 years old. My sager is already at 13% wear and is at around 9 month's old, I only use it as a UPS because it's not really useful for anything else (45 minutes to an hour for web surfing).

 

Well just avoid Sony period.

And yeah I wasn't really angry that my Vostro 1500 battery conked out after 2 years, though I did pay 40 extra bucks for the 9 cell, and I have seen many 6 cell for my model still functional even today. Plus 15.4" even back then I realized wasn't very portable, it was pretty much a desktop replacement so it was plugged in all the time. I love my new Latitude 13, 13.3" might be the way to go from now on

 

Thanks for the compliment ^^ Some of this I am learning on the go ^^ Also all i have learned is just from the last 3 months or so ^^ I spend alot of time here...google...oh and ym favorite wikipedia! It is the best place to find sources. Scroll down to the bottom of the page and BAM 40 places for research ^^

 

And I thought you were referring to the spices of Dune.

But regarding batteries, I'm also of the latter. I stick it in and use it. Even your best kept batteries will still degrade over time, it's the nature of the beast. Although I've had yet to have a battery lose a significant amount of charge just by leaving it in my laptop even though it's plugged in 90% of the time.