Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
MBP 17 inch battery life
- Thread starter precator
- Start date
- Sort by reaction score
I'm getting 9 hours with full brightness and using the more powerful 9600 card.
Are you talking about Windows or OS X? Because using Windows 7 i get only about 2 hours too.
kastenburst: Do me a favor, goto "About This Mac" > "More Info"
Under "Power", can you post the entire "Battery Information". You may erase the Serial Number if you wish.
i had a good laugh after reading that.
precator: are you sure you don't have any processes that are taking up cpu usage? 3 hours is not very good especially for the 17" unibody model.
no problem, i've added it as an attachment below.
what? laughing at your own naiveness?
Attachments
That would explain why kastenbrust has such a great battery life, even under full brightness + 9600GT video card.
The battery for the MacBook Pro 17" Unibody should be ~12500 to ~13000 mAh. However, kastenbrust has over 17,000. Nearly 1.5 times more then the rest of us.
Oh, incase you're wondering, I was trying to see if you also had a ~8 Volt rating. I thought it was just a little weird that this system draws 7.2 - 8 volts while my MacBook draws 11.1 - 12 volts.
Apparently...according to Apple, this machine uses half the power, or Watts as a light bulb, so perhaps thats why.
I don't see that anywhere...
However, at full brightness + 9600GT with light websurfing, it seems I'm using ~ 40 watts of power. If they're comparing to a regular 100 watt bulb, thats true.. or if its 60 watt bulb.. yeah, thats true too..
There you go
http://www.apple.com/mac/green-notebooks/#ad
"Because Apple makes both the hardware and the software for the MacBook, we are able to design them to work together. This allows us to make a smarter product that uses less electricity, earning it ENERGY STAR certification. For instance, to reduce energy consumption, the MacBook hard drive spins down automatically when inactive. The MacBook also decides which processor — CPU or GPU — is best suited to efficiently perform a task. The processor even throttles down to save power between keystrokes as you type. The LED-backlit display in the MacBook is another feature that plays an important part in conserving energy, consuming 30 percent less power than conventional LCD displays. And the display is designed to dim when you enter a darkened room. Together, these adjustments make the MacBook family much more energy efficient. In fact, our most popular notebook, the MacBook, can run on just one-quarter the power of a single lightbulb."
I find that pretty incredible to be honest.
12,671 mAh fully charged.
Watched 2h20m of Hulu streamed video, 80% bright, wifi then web browsing, email for another 3 hours before I hit 6% and ended up plugging in.
I'm only on day 4 with this uni 17" but more than impressed with battery life so far.
@ kastenbrust
lucky you! Nice battery, is that just luck of the draw with a stock battery or is there an aftermarket already out?
Watched 2h20m of Hulu streamed video, 80% bright, wifi then web browsing, email for another 3 hours before I hit 6% and ended up plugging in.
I'm only on day 4 with this uni 17" but more than impressed with battery life so far.
@ kastenbrust
lucky you! Nice battery, is that just luck of the draw with a stock battery or is there an aftermarket already out?
Here are my battery settings...
Model Information:
Serial Number: XXXXXXXXXXXX
Manufacturer: DP
Device name: bq20z951
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 0042
Hardware Revision: 0001
Cell Revision: 0119
Charge Information:
Charge remaining (mAh): 6732
Fully charged: No
Charging: No
Full charge capacity (mAh): 12359
Health Information:
Cycle count: 16
Condition: Good
Battery Installed: Yes
Amperage (mA): -4060
Voltage (mV): 7357
Model Information:
Serial Number: XXXXXXXXXXXX
Manufacturer: DP
Device name: bq20z951
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 0042
Hardware Revision: 0001
Cell Revision: 0119
Charge Information:
Charge remaining (mAh): 6732
Fully charged: No
Charging: No
Full charge capacity (mAh): 12359
Health Information:
Cycle count: 16
Condition: Good
Battery Installed: Yes
Amperage (mA): -4060
Voltage (mV): 7357
2 a day almost?
Give or take, yeah. I got my system on Feb 20th in the morning. I'm almost never at my desk unless I'm charging the system
You're pulling 4 AMPS.
12.358AH / 4A = ~3 Hours
In that regard, everything looks good.
4 Amps is a lot though.
My 15" Unibody only pulls 368mA compared to your 4060mA. There is something definitely wrong. Check Activity monitor and see if you have a out of control application. There may also be defective hardware in your laptop causing you to pull 4 Ampers.
Amperage..
I shut down all apps besides Safari and my Amperage (mA): 3924
This still seems really high. Should I make an appt to the genius bar? Does anyone else have a 17 inch unibody and can you tell me how much amperage you are pulling?
I shut down all apps besides Safari and my Amperage (mA): 3924
This still seems really high. Should I make an appt to the genius bar? Does anyone else have a 17 inch unibody and can you tell me how much amperage you are pulling?
Try reinstalling OSX. I had a problem with my battery as well. the iStat Menu thing kills my battery life. Going from my normal 5 hours to 2.5 or 2 hours. There may be some process running that you are not aware of.
Here are my specs:
Also, I guess I checked my amperage too early... Now it's hovering around 900, which is about right for this size battery.
Also, I guess I checked my amperage too early... Now it's hovering around 900, which is about right for this size battery.