Hello Chris, welcome to & thanks for using the Apple Community boards.
There have been a lot of reports of battery drain after performing a Mountain Lion install. There are two suspects to this cause:
- A "runaway" background process - this is when an application or process of an application continues to use CPU power & therefore battery power after it's supposed to terminate.
- At this time Apple is reportedly looking into what is causing this issue. There have been users that have reported that with no runaway processes there is still a significant reduction in battery life.
To look into this I'd say take a peek at your CPU processes using Activity Monitor. Here's some info on that here:
The next is to turn off the Power Nap feature under System Preferences. Here's a support article for adjusting Power Nap settings:
Let us know well this helps out, if at all Chris.
while installing the Seagate Momentus XT will drain some of your battery life because it spins at 7200RPM...
but the issue you're having is not normal.
see what else is running in the background via activity monitor - all processes - %CPU...
anything over 10% under the %CPU section is high and will drain your battery...
Ok first of all thank thank for your support
i put below a screen shoot of most of the process runnining.
i was just dowloading an update on itune when i did it the screen shot.
bottom the idle is always between 75% to 80 % is it normale?
i didn't see anything abnormal well maybe i should bring the HDD to seagate or wait Apple to send the first update?
if you look at the bottom of your screen shot - it's shows you're using 26% - that will cause your battery to drain faster....
change my processes to all processes to get a better glimpse on what's going on....There is 16% that is not accounted for right now....it only shows 10% being used by storeagent which is iTunes.
Have a look at mine:
Another thing to check for Chris is a firmware update from Seagate. I recall at my last employer we had to do that a few times for older MacBook Pros. I don't know if you're going to "need" it but it may help:
While a 7200RPM drive will have a small drain on performance we're talking about minutes not hours, I wouldn't think the hybrid HDD is the culprit unless it's running at high speeds all the time (unless also, of course, a firmware update addresses the issue).
Also consider having a look here for ways to maximize your battery life:
I just installed the same drive in my Mid2010 MBP. The old and new drives were both 7200RPM. I simply cloned my stock drive to the Momentus, installed and and booted up.
The battery life is horendous! After unplugging it I went from 100% to 95% in about 6 minutes. I can actually watch the % tick down. I DEFINIATELY got much better battery life with the stock drive. VERY VERY Disappointed in this drive and may return it.
I just installed the hdd below
Numéro de série (SN): XXXXXX Numéro de produit (PN): ST750LX003-1AC154 MEDIA Numéro de modèle : ST750LX003-1AC154 MEDIA Gamme : MOMENTUS XT
All information given below are interessting but that doesnt help at all. Even if you check/update all configuration for Power Management, check if some processes are showing CPU consumption, you still have an amazing change in your battery lifetime.
OK, performace are really better than the original 5200 RPM hdd but this is impossible to stay in this situation. I have something like 3h max. it was 6h20 before....
I checked seagate website no firmware update... it is just unbelievable.
It cost money and time to switch such device. the result is not acceptable for regular apple users the MBP is not professionally operational since then.
Any help is of course welcome
Nom du modèle: MacBook Pro
Identifiant du modèle: MacBookPro8,1
Nom du processeur: Intel Core i5
Vitesse du processeur: 2,3 GHz
Nombre de processeurs: 1
Nombre total de cœurs: 2
Cache de niveau 2 (par cœur): 256 Ko
Cache de niveau 3: 3 Mo
Mémoire: 4 Go
Version de la ROM de démarrage: MBP81.0047.B27
Version SMC (système): 1.68f98
Here what i did since i sent my question:
- i updated dmy power settings which help a little bit
- i updated Mountain Lion which didn't change anything
- i tried to update the firmware of Seagate but i could not find how to do it so IF YOU CAN HELP about that?
Then i did an image of my HDD to use same installation onto my western scorpio blue, and i monitored my battery which came to almost normal around 6h after full cycle of discharge and charge.
Ok i noticed that my macbook is very hot on the keyboard now and especiall below, the cooling fan is running more often (never heard spining it before).
Any other suggestions? because it is not due to my battery since i tried the old HDD and span time running on battery came back to normal.
I ask the shop to take it back and they refused.
Beside the problem of draining out my battery, the performances are really good.
Well cannot write anymore because just few % battery left, better to send before loosing all.
Thanks guy if you have any input!
Wow Chris that really is terrible. Sorry you're having so much trouble with that HDD, at my former job I installed that drive in dozens of Macs & PCs and never saw the battery or heat issues you're having.
I did some digging around on Seagate's discussion boards. There seems to be a firmware that fixes the battery & heat issues, vSD28. Specifically it addresses the fact that the hybrid HDD/SSD never spins down. Which makes sense if the HDD platters are always running then the battery will drain faster & excess heat will be created.
Here's the download page.
Firmware update procedure (this is once you boot to the CD):
This is the instruction set from Seagate for running the update:
If you need to know how to burn an image (.ISO) file to a disk look here - it's the same for all versions of OS X since 10.5:
In my searching I've found that some people had to run the update 3 times before it actually updated the hybrid's firmware.
Another user stated that if you downgrade the EFI on your MacBook Pro to v1.6 it'll fix the issue as well (doing a firmware downgrade is a little more difficult however). There does seem to be a number of people on various forums on Google that reported success as well.
Lastly one user on Seagate's forums reported that he had to replace the drive because it was defective. His issues were the same as yours & had the retailer swap the drive, now his problems are solved. So you can always seek an exchange as well directly through Seagate.
Thanks for the info,
I checked the different links given by mac.heretic , SEAGATe says that the firmware applies for ST92505610AS
ST93205620AS, ST95005620AS model.
Mine is the model ST750LX003-1AC154 XT, so i don't dare to update it?
Anybody can confirm that this update is suitable for my HDD ???
I contacted Seagate on facebook and no reply yet! will try to call them on monday!
Thanks a lot !