New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MacBook - MacBook battery capacity down...


Post Reply New Thread Subscribe

 
Thread Tools
shahvikram123

 
shahvikram123's Avatar
 
Member Since: Nov 16, 2006
Location: UK, London
Posts: 632
shahvikram123 will become famous soon enough
Mac Specs: Macbook: 2GHZ Intel C2D, 2 Gig Ram, 80 GB HD. Mac Mini: Intel C2D 2GHZ, 2 gig ram, 120gb HD

shahvikram123 is offline
I've had my Macbook for about 15-16 months and my battery capacity has dropped down to 5136 from 5200 (which is the original battery capacity).

According to coconut battery this is a 2% drop - so the current battery capacity for my macbook is now 98% and it doesn't go up.

So far I've calibrated the battery, but the battery capacity doesn't seem to go up to 100%.

Does anyone know how to make my battery capacity 100% again.

By the way, I've had about 370 load cycles; could this be the reason as to why my battery capacity has decreased by 2%
QUOTE Thanks
bryphotoguy

 
bryphotoguy's Avatar
 
Member Since: Feb 02, 2007
Location: Chicago, IL
Posts: 3,978
bryphotoguy is just really nicebryphotoguy is just really nicebryphotoguy is just really nicebryphotoguy is just really nicebryphotoguy is just really nice
Mac Specs: Quad 2.8GHz Mac Pro, Edge iPhone

bryphotoguy is offline
Batteries do loose their charging capacity. From what I've seen around here, you have a very strong battery.


January 2008 Member of the Month
QUOTE Thanks
ogacon

 
ogacon's Avatar
 
Member Since: Mar 16, 2008
Location: Twin Cities (Suburbs) Minnesota
Posts: 645
ogacon has a spectacular aura about
Mac Specs:  15" 2.4 MBP  iPod Classic 80 GB, Silver

ogacon is offline
98% is very good... Batteries should never be FULLY full anyway (such as in charged to 100%, you don't want to overcook things either ya know?), as it makes it wear out more. I'd be very happy with 98% after 15 months, and 370 cycles.

Relay For Life Support me in Relay For Life! Run by American Cancer Society. Cancer research.
What sound does your Rooster make?
QUOTE Thanks
shahvikram123

 
shahvikram123's Avatar
 
Member Since: Nov 16, 2006
Location: UK, London
Posts: 632
shahvikram123 will become famous soon enough
Mac Specs: Macbook: 2GHZ Intel C2D, 2 Gig Ram, 80 GB HD. Mac Mini: Intel C2D 2GHZ, 2 gig ram, 120gb HD

shahvikram123 is offline
Quote:
98% is very good... Batteries should never be FULLY full anyway (such as in charged to 100%, you don't want to overcook things either ya know?), as it makes it wear out more. I'd be very happy with 98% after 15 months, and 370 cycles.
Quote:
Batteries do loose their charging capacity. From what I've seen around here, you have a very strong battery.
Ah ok, thanks for your help…

So when do you think I should think about getting a new battery. I mean after how much of a % drop. I ask because I'm going to be going University in a few months and I would need my Macbook 'on the go' a lot more. How long do you think the battery will last before its unusable...
QUOTE Thanks
ogacon

 
ogacon's Avatar
 
Member Since: Mar 16, 2008
Location: Twin Cities (Suburbs) Minnesota
Posts: 645
ogacon has a spectacular aura about
Mac Specs:  15" 2.4 MBP  iPod Classic 80 GB, Silver

ogacon is offline
I'm not sure about that one, but I have a question for you. How do you use your battery? Have you kept it plugged in or constantly drain/recharge? I ask because I want my battery to last that long

Relay For Life Support me in Relay For Life! Run by American Cancer Society. Cancer research.
What sound does your Rooster make?
QUOTE Thanks
bryphotoguy

 
bryphotoguy's Avatar
 
Member Since: Feb 02, 2007
Location: Chicago, IL
Posts: 3,978
bryphotoguy is just really nicebryphotoguy is just really nicebryphotoguy is just really nicebryphotoguy is just really nicebryphotoguy is just really nice
Mac Specs: Quad 2.8GHz Mac Pro, Edge iPhone

bryphotoguy is offline
Wait and see how the battery stands up in a few months. It's not going to work great one day and completely go bad the next day.
You'll have plenty of time to order a new one when you will need a replacement.


January 2008 Member of the Month
QUOTE Thanks
shahvikram123

 
shahvikram123's Avatar
 
Member Since: Nov 16, 2006
Location: UK, London
Posts: 632
shahvikram123 will become famous soon enough
Mac Specs: Macbook: 2GHZ Intel C2D, 2 Gig Ram, 80 GB HD. Mac Mini: Intel C2D 2GHZ, 2 gig ram, 120gb HD

shahvikram123 is offline
I just kept my Macbook plugged in most of the time, but I calibrate it about once or twice a month. Also about once a week or so I would use it just off the battery till it gets about 60-70% then charge it up again.

As far as I'm aware you should avoid draining the battery and then charging it back up too much and also avoid leaving it plugged in for too long (e.g. a few weeks).

Hope this helps!
QUOTE Thanks
dakineyj

 
dakineyj's Avatar
 
Member Since: Jan 24, 2007
Location: Kailua Kona, HI
Posts: 878
dakineyj will become famous soon enough
Mac Specs: MBP 15", 2.66GHz Intel Core 2 Duo, 4GB RAM, OS X 10.8.2, iPad 1, 80gb iPod, ATV 1, iPhone 5

dakineyj is offline
You should replace the battery when the time running on the battery diminishes to the point that is unacceptable to you. Now for me, I have 81% on 125 cycles. It is only lasting about 2 hours and Full charge capacity (mAh): 4543
QUOTE Thanks
dr_doof

 
dr_doof's Avatar
 
Member Since: Mar 19, 2008
Location: sydney, australia
Posts: 75
dr_doof is on a distinguished road
Mac Specs: 2.4GHZ Macbook (black), OSX Leopard 10.5.5, 1GB Shuffle,4GB Nano,2GB nano 2nd generation

dr_doof is offline
i was told it's best if you occasionally let your battery drain fully- about once per month. it lets the lithium ion batteries 'remember' their full capacity. i'm not sure why mine said 5172 (after 37 cycles) and now 5228 after 41 cycles as full charge. :S

Chat Potatoes
QUOTE Thanks
shahvikram123

 
shahvikram123's Avatar
 
Member Since: Nov 16, 2006
Location: UK, London
Posts: 632
shahvikram123 will become famous soon enough
Mac Specs: Macbook: 2GHZ Intel C2D, 2 Gig Ram, 80 GB HD. Mac Mini: Intel C2D 2GHZ, 2 gig ram, 120gb HD

shahvikram123 is offline
My Macbook battery capacity has gone down even more!! its at 93% capacity now.... whens it going to stop!!!!!!

Vikram Shah
QUOTE Thanks
FrayAdjacent

 
Member Since: Apr 02, 2008
Location: Austin, TX
Posts: 49
FrayAdjacent is an unknown at this point
Mac Specs: MacBook 2.2GHz

FrayAdjacent is offline
with 370 cycles, your battery may be on the way out. Monitor it, and see if it continues to drop. If so, I'd plan on picking up a replacement soon.


When you do get a new one, remember to discharge it (to probably 20% or so) at least once a month, then fully charge it. Lithium batteries like to be exercised, and do not like to be left plugged in constantly.

The very existence of flamethrowers proves that some time, somewhere, someone said to themselves, "You know, I want to set those people over there on fire, but I don't want to have to walk over there to do it."
QUOTE Thanks
jpfive

 
Member Since: Mar 30, 2008
Location: Pensacola, FL
Posts: 5
jpfive is on a distinguished road
Mac Specs: MBP 2.2Ghz

jpfive is offline
New owner and user, and ignorant of how to check the battery. What is the procedure for checking capacity, and recalibrating?

Jack

Jack
QUOTE Thanks
FrayAdjacent

 
Member Since: Apr 02, 2008
Location: Austin, TX
Posts: 49
FrayAdjacent is an unknown at this point
Mac Specs: MacBook 2.2GHz

FrayAdjacent is offline
JP, there is no recalibration process, afaik. (the meter in the task bar will sometimes read less than 100% when it is fully charged. Running it down a little and charging it back up usually resolves)

There's a widget called iStat that can show you stats on the battery.

The very existence of flamethrowers proves that some time, somewhere, someone said to themselves, "You know, I want to set those people over there on fire, but I don't want to have to walk over there to do it."
QUOTE Thanks
dakineyj

 
dakineyj's Avatar
 
Member Since: Jan 24, 2007
Location: Kailua Kona, HI
Posts: 878
dakineyj will become famous soon enough
Mac Specs: MBP 15", 2.66GHz Intel Core 2 Duo, 4GB RAM, OS X 10.8.2, iPad 1, 80gb iPod, ATV 1, iPhone 5

dakineyj is offline
Apple Menu > About This Mac > More Info... > Select "Power" > Battery Info
QUOTE Thanks
FrayAdjacent

 
Member Since: Apr 02, 2008
Location: Austin, TX
Posts: 49
FrayAdjacent is an unknown at this point
Mac Specs: MacBook 2.2GHz

FrayAdjacent is offline
Quote:
Originally Posted by dakineyj View Post
Apple Menu > About This Mac > More Info... > Select "Power" > Battery Info
Yeah... or that.

The very existence of flamethrowers proves that some time, somewhere, someone said to themselves, "You know, I want to set those people over there on fire, but I don't want to have to walk over there to do it."
QUOTE Thanks

Post Reply New Thread Subscribe


« Apple MacBook (MB466LL/A) (13.3", 2GHz, 160GB, 4GB Ram) UPGRADE | Macbook Pro - New Power Adapter - Still Doesn't Charge »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
MacBook impressions - trip to store kaidomac Schweb's Lounge 24 10-14-2007 01:45 PM
Macbook - Backup Battery Phoenix Scanner Apple Notebooks 2 08-06-2007 03:53 PM
MacBook Dead Battery? diesel828 Apple Notebooks 3 04-15-2007 04:38 AM
Macbook battery fragged3d Switcher Hangout 1 03-07-2007 06:24 PM
Macbook Battery Crap? maz94protege Apple Notebooks 3 12-25-2006 07:03 PM

All times are GMT -4. The time now is 04:34 AM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?