Mac Battery Runs Out Really Fast!

Go to the Apple in the upper left corner and select About This Mac, then click on More Info(and then System Report if you are running 10.7 Lion or 10.8 Mountain Lion), then select Power from the left hand column of the System Profiler. Copy and paste the Battery Information from the top of the page back here.

I'm new user of macbook. I had some issues with the battery with my old laptop so I just want to make sure that I do good to this new one. Please suggest me when to charge my battery! Should I just wait it until I get the warning to charge or when (like if the battery is 20% or 30%?) should I plug in the magsafe or when? Thanks in advance.

System Report is only on 10.7 or 10.8. More Info is 10.6.

saarahmrh wrote:

I'm new user of macbook. I had some issues with the battery with my old laptop so I just want to make sure that I do good to this new one. Please suggest me when to charge my battery! Should I just wait it until I get the warning to charge or when (like if the battery is 20% or 30%?) should I plug in the magsafe or when? Thanks in advance.

Batteries these days are not suseptible to the same situations that batteries used to be when rechargable batteries were NiCad batteries. Now they use different technologies and you don't have to wait till they are fully discharged to plug them in and recharge them. This isn't saying that you shouldn't do it once in a while, but you don't have to do it every time. Now it's more cycles that wear down batteries. A cycle doesn't happen at a half discharge to full charge either. It's more going to be a cycle if you did that twice, so if you went to 50% and then charged full, then went to 50% and charged full again, that is a cycle. So I wouldn't worry about having to fully discharge the battery before plugging it in and charging it again. But, I would suggest doing it every once in a while.

Frederic,

I am having this issue, just got my macbook pro in August 2013. My battery draines really fast. I charged it to 100%, unplugged it. Have been using it for little over 1 hour and it is on 73%. I only went to a 2 or 3 webpages... I have one webpage open because my one book for school is an ebook. Its a web book though... not a download.

I did what you said about copying and pasting system report... Can you tell me anything from this..

Hardware Overview:

Model Name: MacBook Pro

Model Identifier: MacBookPro10,2

Processor Name: Intel Core i5

Processor Speed: 2.5 GHz

Number of Processors: 1

Total Number of Cores: 2

L2 Cache (per Core): 256 KB

L3 Cache: 3 MB

Memory: 8 GB

Boot ROM Version: MBP102.0106.B03

SMC Version (system): 2.6f59

Serial Number (system): C02KT6XEDR53

Hardware UUID: 102F5392-719F-55E6-9AF6-66341FE176B3

Sudden Motion Sensor:

State: Enabled

Thanks for any help you can give.

Ashley

just update... 25 minutes later and im on 67%. Havent did anything...

Select Power from the left hand column of the System Profiler not the Hardware Overview. Copy and paste the Battery Information from the top of the page back here.

This is mine,

Battery Information:

Model Information:

Serial Number: C0122450J7CDKRTAT

Manufacturer: DP

Device Name: bq20z451

Pack Lot Code: 0

PCB Lot Code: 0

Firmware Version: 406

Hardware Revision: 1

Cell Revision: 173

Charge Information:

Charge Remaining (mAh): 1419

Fully Charged: No

Charging: No

Full Charge Capacity (mAh): 4347

Health Information:

Cycle Count: 157

Condition: Normal

Battery Installed: Yes

Amperage (mA): -887

Voltage (mV): 7441

System Power Settings:

AC Power:

System Sleep Timer (Minutes): 0

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 30

Wake on AC Change: No

Wake on Clamshell Open: Yes

Wake on LAN: Yes

AutoPowerOff Delay: 14400

AutoPowerOff Enabled: 1

DarkWakeBackgroundTasks: 1

Display Sleep Uses Dim: Yes

PrioritizeNetworkReachabilityOverSleep: 0

Standby Delay: 4200

Standby Enabled: 1

Battery Power:

System Sleep Timer (Minutes): 0

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 5

Wake on AC Change: No

Wake on Clamshell Open: Yes

AutoPowerOff Delay: 14400

AutoPowerOff Enabled: 1

Current Power Source: Yes

DarkWakeBackgroundTasks: 0

Display Sleep Uses Dim: Yes

Reduce Brightness: Yes

Standby Delay: 4200

Standby Enabled: 1

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: No

Charging: No

Sorry Frederic... here is mine

attery Information:

Model Information:

Serial Number: C0132110UL9F956A8

Manufacturer: DP

Device Name: bq20z451

Pack Lot Code: 0

PCB Lot Code: 0

Firmware Version: 511

Hardware Revision: 000a

Cell Revision: 1169

Charge Information:

Charge Remaining (mAh): 3417

Fully Charged: No

Charging: No

Full Charge Capacity (mAh): 6588

Health Information:

Cycle Count: 12

Condition: Normal

Battery Installed: Yes

Amperage (mA): -1524

Voltage (mV): 11276

System Power Settings:

AC Power:

System Sleep Timer (Minutes): 10

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 10

Wake on AC Change: No

Wake on Clamshell Open: Yes

Wake on LAN: Yes

AutoPowerOff Delay: 14400

AutoPowerOff Enabled: 1

DarkWakeBackgroundTasks: 1

Display Sleep Uses Dim: Yes

PrioritizeNetworkReachabilityOverSleep: 0

Standby Delay: 4200

Standby Enabled: 1

Battery Power:

System Sleep Timer (Minutes): 10

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 2

Wake on AC Change: No

Wake on Clamshell Open: Yes

AutoPowerOff Delay: 14400

AutoPowerOff Enabled: 1

Current Power Source: Yes

DarkWakeBackgroundTasks: 0

Display Sleep Uses Dim: Yes

Reduce Brightness: Yes

Standby Delay: 4200

Standby Enabled: 1

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: No

Charging: No