thanks a lot preducer n kellykulala! oh n dvlzplayground too
not tht worried anymore

that's why

Keeping the battery @ 100% will kill it faster. See post #256. I've explained the behaviour of li-ion.polymer cells.


Unfortunately it should read good. Maybe apple changed, i dunno. Try downloading coconut battery to check it's capacity.
It should read something like



To shed more light, calibrating WILL NOT increase the capacity or maintain it. (No matter what apple says)

The purpose of calibration is to reset your macbook's battery meter so that it is accurate. Hence the term "calibration"

In fact, calibration will usually decrease battery's capacity by a little bit as lithiums do not like to be over-discharged.



Here's my battery few days after calibration.
Hmm... can't upload.. oops.
Type out la.

Current cap. = 4668 mAh
Ori cap. = 5020 mAh
Capacity left = 92%

Load-cycle = 313
Age = 24 months

Hey not bad =P

if this is my battery condition, can it be recondition back to better life as the battery loadcycle is kinda low



if yes, how can i do it

thanks

wow 3 years already. it's time....

cost saving man

go green wif reuse

hi,
I am sorry, i am new to mac as well, I have MBP 15inch and i can't seem to find the charge cycle. my battery life always show 96% eventhough i am still charging it.. Is it okay to keep charging my MBP as i always leave it at home, hence the plug is on 24/7. I do off it sometimes to drain the battery..

Hope my actions are not ruining the battery life..
another thing is, the website says battery can last up to 7hours,
yet when i bring it out, it only last about 4-5hours max.

If i were you,

i will charge the battery when i am not using the lappie, this way it wont put a strain on the adaptor and in the process it will last longer
i will turn off the mains to use the lappie, once its fully charge
i will discharge it once every 50 days or so

well easily, your battery kaput
you're wasting your battery cycle

i wont recommend the way you use, i have a very good example
my dad macbook is nearly 3 years
the battery still very genki

use it as normal will plug in, even fully charge, just let it be, only be portable when you need portable, mean only use battery when away from desk. And do calibration every months, means fully drain the battery then charge back

agree with crayzee. digilife u need to change ur habits ;p

go to About this Mac, More Info, n go to Power. that's where the charge cycle is ('cycle count' under health information). alternatively u can download iStat pro, iStat nano or coconut battery.

my MBP is plugged in all the time when i'm using it. only when i turn if off, i disconnect the magsafe

battery life heavily depends on what u're doing with the notebook (or any gadget). if u leave it idle, off wifi n bluetooth, no apps running, and off the screen, i think can go more than 7 hours ;p

wont tat "kill" the battery faster?
cause tat was wat happened to my acer battery last time

or acer battery system is different??

yes it's different on macs the charging connection will be cut off when the battery is full. i think sony laptops are like this too

This post has been edited by dvlzplayground: Jan 4 2010, 01:23 AM

although they are both start will "A" company
but they are really different
i'm pre-acer user as well

since 3/4 years back, apple design circuit was so intelligent, it will automatic stop the charging and allow the computer will direct power in only

we did have debate whether is was software control or hardware control

my fren told me windows vista will perform the same operation as well, i not quite sure
Sony Computers do have the features as well

so meaning to say tat its better to plug-in to the mains and use the lappie while the switch is SWITCHED ON will actually prolong the battery life as the electric current will bypassed the battery and main power will be used?

well, you wont wanted to always take out and put in your battery, dont you?
you dont want to waste your battery cycle, dont you?
so, just plug on the power, nothing to worry

when you see charged, mean battery fully charge, when your mac will use direct power from adapter.

better or not.... well i manage to have batter battery service period. My dad fren did the same as you, his battery kaput after year plus. They bought the mac almost the same time. So, how do you think?

yes, better and easier. it doesn't 'prolong' the battery life (as in longer than it should), it's just how u're supposed to use it. if u keep taking out the battery, then u'll be charging it so many times n it'll die sooner than it should.

Sorry, there is no way to regain lost capacity on Lithium batteries as the chemistry is like that. Only option is to get a new battery.

You should check if your battery is really at that capacity though as it is un-naturally low. It should be more than 50% still. Is this after a calibration? An uncalibrated reading might not be accurate as some charge can be lost during the charging/discharging process.


Yes it will ruin the batt if you keep it full all the time. This is just the way Lithium batteries work.
Battery life depends on what you do.

If you want to leave your MBP at home all the time, I suggest you get a desktop.

If you really want to maximize your battery life, there is one way.
Discharge it to 40%. Then store it in ur fridge. 40% seems to be the optimal capacity to store a Li-ion based battery and the lower the temp, the better. Not too low like freezer. Fridge should be fine.


Yes, keeping it full will kill it faster.

And please, Acer and all other companies battery work the same. Even the charging algorithm is the same as Lithium cobalt based batteries are very explosive prone and is not happy with weird charging algorithms. If charge is not cut by the time the batt reaches 100%, it will (soon) overheat and blow up. *BOOM*

Acer and all other companies do have a separate problem though. The battery is usually kept together with all other heat producing components. So the battery will naturally not last as long. Apple (being the genius they are) has kept the battery far away from all the "battery assassins". Therefora a mac battery usually lasts much longer. Hooray to Apple! =D


Here's my batt.
Hmm... it refuses to let me upload.. =(

Charge Information:
Charge remaining (mAh): 2409
Fully charged: No
Charging: No
Full charge capacity (mAh): 4636 (of 5020, 92%)
Health Information:
Cycle count: 318 (age: 24 months)
Condition: Good
Battery Installed: Yes
Amperage (mA): -1387
Voltage (mV): 11236

This post has been edited by polkiuj: Jan 4 2010, 12:14 PM

My battery is currently at 64% capacity after over 3 years of use. It shall be replaced with this:

http://store.fastmac.com/product_info.php?products_id=3

any local reseller available which sells reliable or ori battery?

thx

What is the implication if i turn on my MacBook Pro 13" for hours and hours with charger on? Maybe days, because i need to burn in my headphone if u guys know what i mean. Also, what happens if we don't have AppleCare and our battery doesn't work?Can retailers help us change the battery on the spot?