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MacBook Pro Retina Battery

My new macbook retina has not lasted me or predicted longer than 3 hours of battery life. However reviews are confirming apple's prediction of 7 hours. My brightness is down, keyboard illumination off, bluetooth off and barely using the comp.


What could be wrong?

MacBook Pro (Retina, Mid 2012), Mac OS X (10.7.4)

Posted on Jun 16, 2012 5:17 PM

Reply
88 replies

Apr 10, 2013 12:15 PM in response to tivoboy

YOU MUST READ THIS POST!!


Just sick!


So, I have done a couple things in the past two days. I updated to 108.3 (or whatever the latest was) and the new SMC controller for the rMBP 15"..


I ALSO did a PRAM and SMC reset. I probably should have done these two large things seperately, maybe do the PRAM/SMC resets and tested, and then done the 10.8.3 and SMC FW update and then tested.


But, regardless. Since yesterday when I did this I have now been getting just EXTRAORDINARY battery life. I have done now about 4.5 hours (which is a typical TOTAL day) and my battery life still shows 65% remaining and about 4-5 hours remaining. Now, I don't think I will GET that much, but I am sure I am going to get 6-8 hours today, which would be JUST SICK! Best battery life of any laptop I have used.


I have not seen any performance degradation, so I don't know what is going on to enable this, reduction in CPU or GPU switching? I'd really like to know, how would I test that?

Nov 1, 2013 3:26 PM in response to doobie

So I'm trying to figure out the best way to keep my battery as healthy as possible in my retina Macbook Pro because I was recently told at the Genius bar that replacing this battery could cost around $400.


I've read in some places when trying to figure this out that you don't want your laptop plugged in all the time, I've heard newer batteries don't need to be periodically discharged to zero (calibrating batteries like in the older macbook pro's), I've read that you want the electrons in the battery to me moving as often as possible, so you want your computer to be charging and discharging constantly, that you shouldn't have the power cord plugged in if it is full (which would seems to lead to a high number of cycles). Now the Genius I went to today said I should keep my laptop plugged in more often to keep the number of my cycles low. I'm getting a lot of mixed messages and I am a bit confused. Anyone know the definitive way to keep your battery healthy?


Here are my current battery specs. I got my retina macbook pro July of 2012, so i'm at about 16 months w/ this battery


Battery Information:


Model Information:

Serial Number:

Manufacturer: SMP

Device Name: bq20z451

Pack Lot Code: 0

PCB Lot Code: 0

Firmware Version: 511

Hardware Revision: 3

Cell Revision: 1150

Charge Information:

Charge Remaining (mAh): 6862

Fully Charged: No

Charging: No

Full Charge Capacity (mAh): 7378

Health Information:

Cycle Count: 463

Condition: Normal

Battery Installed: Yes

Amperage (mA): -1236

Voltage (mV): 12080

Nov 1, 2013 4:11 PM in response to doobie

I already suggested some techniques to find reasons of higher energy consumption. Having my retina MBP for a year now I finally found my solution:


Install OS X 10.9 Maverics and check the Energy tab in Activity Monitor.


In Maverics you find a new tab "Energy" in the Activity Monitor. The tap lists the energy consumption on a per process / per application basis.

I was pretty obvious that a specific application was consuming too much energy, draining the battery.


Look for processes consuming to much energy. If identified, check if you really need the stuff or if you could just uninstall it.


PS: In my case it was a background process which related to a software I rarely use for a SmartBoard. Theses guys seem to write pretty bad software, because that background process was running all the time and consuming 2%-5% even if none of their apps was running.

Dec 5, 2013 9:01 PM in response to 60wpm

You are lucky that you do not live somewhere in Asia. In Apple's biigest growth markets they are instructed to give you the finger right away. A battery replacement in Asia will cost you 530 USD That's right. I phoned with Singpaore and they simply tell me that they cannot replace a battery in a 15 month old MBP Retina. you have to buy a new case. Never mind, the fact that I will tell anyone I know not to buy an Apple product in Asia. For starteers when you buy a Mac in Europe you do not need the Apple Care as by law they have to service your machine free of charge for three years. In Asia however Apple sees their customers as a walking wallet.

Dec 18, 2013 10:10 AM in response to DeMinister

Just a general query.


My rMBP is 13 months old. Battery strength when purchased was 8760 mAh at Full Charge Capacity.


Fast forward 13 months and the very maximum charge now is 8012 at Full Charge Capacity. The cycle count is only 49. I have tried resetting the battery of course but still it seems to only hold 7900-8000 the past few weeks.


Should the battery be holding almost 10% less charge in just 13 months of use?


lm2

MacBook Pro Retina Battery

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