Will I damage my laptop battery if let's say I plug in my battery to my laptop while at the same time using my adapter to power my laptop?

Will my laptop battery get damaged due to overcharging ?

Reason is because in case of any black out, my laptop battery will be able to power my laptop if there is a power surge.

Please help

overcharging and heat from lappy can damage the battery...

after reading this...quickly i remove the batt...

is dat posible i buy new battery for my laptop..but hav long lasting life..3hour++

there's no such thing as overcharging... the laptop would cut off power to the battery once it's fully charged...

however, heat does kill the battery cells, best to remove it when using intensive programs like gamin...

lagi2 compaq..da la panas..

new battery doesn't affected by that.

its highly depend on your usage, especially for new battery.

check your CPU usage level, brightness of LCD, those are the major factor.

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let me put it this way:

you plug in your battery during DC supply, there is slight probability that your battery lifespan will decreasing by time.

you unplug your battery during DC, your battery lifespan might be a little longer, but you will face a risk of mobo damage due to sudden ceased of power supply.

which one do you prefer?

how long the battery can last depends on many factors...

capacity of the battery, program that u run, wear lvl of the battery, juz to name a few...

as a general guideline, expect around 3hrs from a new battery, ULV and netbooks excluded...

let me put it this way:

you plug in your battery during DC supply, there is slight probability that your battery lifespan will decreasing by time.

you unplug your battery during DC, your battery lifespan might be a little longer, but you will face a risk of mobo damage due to sudden ceased of power supply.

which one do you prefer?

[/quote]

i understand..
dat y i asking..
is dat posible for me to buy new battery(spare in case of emergency) but the battery hav long lasting life 3hr +++

all i can say, those are total bullshit...

waste money la...selagi not rosak..use until rosak =D

why not? thats most common trick especially when you are traveling

dont worry much about your battery duration. just check your usage level and its can be control by that way.

wow astria having PMS today

too much studying perhaps???

i bought new laptop (well not new, just one month old) i never unplug battery .... at home always use wall plug.

after 1 year battery life decrease from 3 hour to 2 hour (best stretch) now after 3 years can last maybe 30 minutes ... lol. (already bought new battery now can last 3 hours++)

my friend who practice unplug the battery after 3 years also same condition as me ... can last maybe a little bit longer around 45 minutes ...

so up to you lah

I guess batteries degrades overtime as they age

+1
Better, just remove the battery when power supply is available

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Added on November 11, 2010, 2:34 pmI never removed the batteries of my M100 as well... wasn't aware of the heat that was killing it
Now can last around 45 minutes only....
I don't think if always unplug the battery will shorten the lifespan of the batteries that quickly though...

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Added on November 11, 2010, 2:35 pmLOL!!
astria sifu

This post has been edited by [PF] T.J.: Nov 11 2010, 02:35 PM

there is one website named Battery University or somethin' that explain from A to Z in details about battery. i did bookmarked it before but don't know where the heck did i put it.

it should be an excellent references.

isn't that already stated in the law of life?

depends on how u treat the battery...

i ve yet to try the 40% + fridge technique...

all item in the world akan rosak jugak akhirnya..

Just plug in the battery, better battery damaged rather than data damaged....

yeah. as simple as that.

there's sth call Ctrl+S...

if that's already becoming your habit, its okay then. or better, just adjust the setting to make your M.Office to save in smaller time interval.

Ctrl + S still not perfect

well, i Ctrl+S even if i juz want to change 1 alphabet...

a habit i got when serving NS...

i can't imagine what had you been through while serving till like that.....

deal with too many spreadsheets and documents...

But how much heat only.. If you read at batterycare.net it says temps above 55C shud unplug.. a.k.a. when gaming etc etc..

exactly! the reason why i dont dare to take off the battery...cant imagine half way rendering then putus

I feel you.... running my analysis for 3 days straight then electric putus
Almost cried that time

yeah, same same. plug out better. cause after i read this, i touch my battery, its kinda hot.

my last tragedy involving my thesis. stress for one day. and thats the last time i unplug my battery

my solution is make it die fast within 1 year, and change a new 1 ^^

I guess we all share the same dream.... provided we have the money of course hehe
It will be good to have no compromise at all in terms of performance as time passes by

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Added on November 12, 2010, 12:24 pmWe are both TNB's victims haha

This post has been edited by [PF] T.J.: Nov 12 2010, 12:24 PM

understand some laptop manufacture called it as smart battery, battery itself know when charge n discharge, but it's recommeded to discharge ur battery to >5% once a month to prolong the life span.

im using the same way like u for my previous acer laptop ..
as the result,my battery damage after few month

woa few months? what did you do? i believe every battery have at least 3 months warranty...

anyway to detect battery temp..

tried with HWmonitor, but it only shows the voltage reading

lol.. cq40's battery might cost rm160-220..

Don't worry about overcharging, most laptop batteries have protect sytem.
Let it stay in the laptop for the battery has natural life no matter you use it or not.
Tip and manual about taking care of laptop battery:
http://www.battery4us.com/blog/
http://www.battery4us.com/

Which heat you are talking about?

if laptop battery heat how to measure? Thermometer?

good question.

never thought of that too.

yeah, so what temperature we measure?

juz remove when u re on AC power...

done...

fixed

that involves extra investment... at least i am not going to do that...

but some people willing to do that..i am still considering on that solution...

i studied about battery here


http://alternative-battery.blogspot.com/

How long is the normal UPS battery can keep a laptop running?

on desktops it's abt 10-15mins...

juz nice for u to save and switch off the computer...

so expect double the time or more on a laptop...

battery doesn't have the sensor to detect temperature.

thermometer not accurate, use thermal gun instead

I dont think its true la.. I used my laptop for 1 year, always plug to AC with battery attached. The battery life never degraded.

check the wear lvl...

Toshiba has this pc health monitor thingy running in the background


Plus if i use the eco utility whatever i can get up to 4hrs. Ofc cant compare to timeline la but mine doesnt have 2 gpu to switch from lol

honestly i never trust those system monitoring programs from the makers themselves...

more often than not, they are overly simple and dun provide much useful data...

u'll be surprise when u use third party programs like HWMonitor and BatteryCare...

this one's from my 1.5yr old laptop...



yup, only 1% wear after 18 mths of using... this is the result of removing the battery religiously whenever i use AC power...

4hrs is not a big problem when i am on Asus Power4Gear Battery Saving Mode... with C2D T9550 and HD4650...

This post has been edited by astria: Nov 18 2010, 09:14 PM

Oh no wonder ur battery can last longer than A42Jv, capacity is slightly higher... For some reason ur processor temp is quite low compared to mine...

that's becuz i am in Australia + i ve removed the original thermal pad and replaced it with OCZ Freeze for both CPU and GPU...

and also, the battery is rated 4800mAh...

This post has been edited by astria: Nov 18 2010, 09:27 PM

Still can't fight Astria's CPU


Attached thumbnail(s)

Not worth to get the UPS then.

Never heard of. Mind posting the picture here?

Your lappy has a good owner lo.

I also try to do this to my Acer laptop, but i am not good at doing this kind of stuff.

juz that i 1 day boring nothing to do and itchy finger then go and replace the thermal compound...

looks like a good decision after all...

i take out all my laptop screws, but cannot open 1.

After that, i did not try it again.

My laptop is like 3 weeks old only but according to CPUID, my wear level is at 3%, is this normal or they sold me fake batteries?

For A42Jv, the battery probably rated 45000 but it shows 47300 in HWINfo...

Eh, I am in London ler, even colder than Aussie I am sure.. somemore it's winter now.... My idle temp for CPU also around 45 with U2 cooler.... ><

Wanna know more about this OCZ thing, hard to apply or not?

Applying isn't that hard, reaching the CPU part is the hard part...

GPU is easier right?

Nope, depends on your notebook design...
Some have direct access to GPU and CPU, and some need to open every single bits just to reach there...

well, i was lucky to ve a heatsink that is easy to remove...

My laptop is like 3 weeks old only but according to CPUID, my wear level is at 3%, is this normal or they sold me fake batteries?

battery capacity is at 66000 down to 64480

It's possible.. Because the wear level is not really accurate.. Try doing 1-2 times discharge and charge to full again.. I once had 7% wear level but after discharge it became 2-3%zx

most of the laptop reviewer using thermal gun since its the most precise instrument to measure heat emitted.

check those review vids. i pretty sure you will stumble one.

+1.

Ok. I will check it out next time.

i rather have my battery spoil rather than having to redo all my work if there's any sudden electric trip.. i think the battery wont overcharge.. i have a spare battery for my laptop which i seldom use an they both now have almost the same capacity of storing the charge which will run my laptop not more than 45minutes.

Yeah.

My friend just msn me that his laptop suddenly restarts and his work is lost completely since he did not save it when typing it into the wordpad.

The Microsoft Office can recover our documents in case there is a electic trip?

^depends on the auto save did manage to save or not...

agreed. one advantage of laptops over cpus...unless u buy a ups

ur friend should use Ctrl+S instead...

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Added on November 23, 2010, 1:48 amyes, it won't overcharge, rather it's the heat from other hardware (CPU, GPU, etc) that will kill the cells...

This post has been edited by astria: Nov 23 2010, 01:48 AM

i need to ask one question for my fren.. due is battery problem so i post at here..

my fren always use the netbook until auto shut down... cuz he using battery..question is.. will this damage harddisc and battery ?? and beside .. will cause overheat ??

It should be fine as long its a proper shutdown, unless its like sudden shutdown..

Why would it overheat ?

i also duno .. cuz my fren de hp min MOBO died ...XD without three months..

beside.. its consider proper shut down meh ??

1. The netbook reached 3% or 7$ left battery, then it willl start initiate sleep or shutdown
2. or you mean it straight shutdown like laptop with no battery, you just unplug the power adapter ?

so far.. my fren meaning is 2 ... he say use until automatic shut down due on no battery.... haha .. he say he father use it de..

If like that, data might corrupt....

hmmm...yesterday i also face this problem.. forget use power supply.. then auto shut down ... when i open.. it say resuming windows... ..is that harmful too /??

do u mean hibernating???

nope it wont

duno .. since like normal shut down.. cooler no run.. no anything...

If its not shutdown in a split of seconds, its hibernating most likely and that is fine...

This post has been edited by lee_what2004: Nov 23 2010, 11:34 AM

lol... scared me...i thought will be harmful... haha.. since i so sayang my A42JV的。。。XD

everytime i switch on my laptop when it shut down due to no batt it will ask whether to startup windows normally or safe mode.. so i think if you use the laptop till no batt it will cause sudden shut down, just like you switch off the plug of your desktop which is harmful i guess?

but my one is just ask me resuming windows...
ur one only happen when u on the windows and suddenly put out AC or battery...

sure it will harmful n corrupt ur data..

He never expected such a thing to happen. Just pity him.

well, if u are on the window, suddenly the power out, nothing will lost even the microsoft word u are doing, it will auto recover back.(window 7 did a good job, no more window XP)
but if u are starting ur window, suddenly pull out ac or power off,this will lead to system failure.

I noticed Win7 hibernation and resume function having bugs in it. XP does not have this resume bugs. Vista resume is slow but if not mistaken, does not have Win7 resume bugs.

I have tested on diff notebooks / netbooks..all having problem resuming windows back to working condition. After resume back, it does not restore back original desktop setting and the whole system become slows. Even on high end notebook like A42Ja with 6GB RAM.

One thing I notice too. Recent years notebook (HP and Asus that I'm using) does not keep on charging battery. Once the battery is full, it will stop charging. It will start charing once the battery level drop below 95%.

I have an old HP notebook, DV5000 series. After 4 years, battery still can last 1 hour if not mistaken (need to test it out again to confirm). I never take out the battery and the AC adaptor always connect to the notebook.

The question is the battery quality..how good/long it can holding the power before drop below 95%.

Nowadays most of the laptop using lithium cell, so it will discharge itself even though u didnt plug in the battery or use thr battery. So the 95% u mention is depends on how many xell battery or the maximum capacity of the battery. Is dependent variable, which we can give a constant answer.

Where ur laptop a42ja isnt high end laptpp, just a mainstream. My alienware/ desktop serve me well even i hibernate , after resume the desktop i test the benchmark still working like charm. For the bug i did notice where some of the program cant really working well after hibernate

ok, noted (btw, high end notebook for me (i7 CPU) as my low end notebook (umpc) is pentium mobile CPU)

btw, can you do the following hibernation / resume test?

once the notebook go into hebernation, do not resume immediately. Resume after two days. Let me know if it will resume back and work properly or not. Normally, resume immediately after hibernation does not have problem. It is resume after one or two days hibernation then it give problem. XP does not have such issue as I have one system with dual boot: XP and Win7 and the same programs installed. Btw, i have wireless USB mouse connected to the notebook during hibernation/resume.

This post has been edited by peterscm: Nov 24 2010, 06:18 PM

but why need to use resumer after two days ??
normally a few hours .. or maximum should wont more then 24 hours...