Can battery status "replace now" cause macbook pro to slowdown?

@Dhalgren

I too ahve a MBP early 2011 version... I had struggling with a slow display for over two months. i formatted my hard drive, reinstalled the OS, backed up all my data to my external drive but all the effort went in vain...

I really have no words to thank you for sharing the steps!!!

It worked for me... Thanks a ton bud. 🙂

Battery is an integral part of the power system.

A non-functioning battery can cause problems including slowing down the computer.

Graphic intensive applications draw additional power from the battery.

"Service Battery" means replace the battery as soon as possible.

"Replace Now" means replace the battery now.

Best.

16 months? Wow, I hope you bought AppleCare.

Go to your Apple menu > About this Mac > More Information > Power > Battery and copy all the information and paste it here.

I have a Early 2011 machine too. Thanks 🙂

Yep, processor speed is automatically reduced. Your situation is the same as if you didn't have a battery installed Read here:

http://support.apple.com/kb/HT2332?viewlocale=en_US&locale=en_US

I'm having the same issue. Early 2011 Macbook Pro, 8GB RAM, about two years, pretty intensive use of battery. Couple of weeks ago, the status was 'check battery', but after I updated the SMC firmware, the status changed to 'replace now'. So now my mac gets really slow after a few minutes of use. It startsup ok, but later on, even when typing an adress in Safari takes a while to the charecters appear after I hit the keybord, and the video playback is terrible. This is very annoying. I will absolutely have to replace my 248 cycle dead battery much sooner than what I'd expect.

No guarantees but this worked for me:

My Mac started running really slow when my battery died. I have a MBP (early 2011) with a built-in battery.

I checked Activity Monitor (/Applications/Utilities/Activity Monitor) and found that PID O, kernel task, was taking up 500% of CPU. Normally, it's < 5% at all times. I searched online and found the following fix. Though my battery was still dead, performing this fix solved my problem. Speed improved to normal. I still had to get my battery replaced but now my MBP is completely okay. I would check Activity Monitor. If PID 0 is taking up a lot of CPU %, you may want to try this.

BTW, the fix removes a .plist related to SMC thermal control. I don't know why it works but it worked for me. It looks a little scary to do but I had no problems and it worked instantly.

Here's the link: http://www.rdoxenham.com/?p=259

Don't follow the advice in the main text. Follow the advice in the comments, by "bryazana:"

1. Go to About this mac under the apple in the upper left and click on More info

2. Click on system report

3. make a note of what it says after Model Identifier

4. go to your master drive – System -Library – Extensions – IOPlatformPluginFamily.kext -Contents – Plugins – ACPI_SMC_PlatformPlugin.kext – Contents – Resources – find the name from step 3 and move it to a folder that you can find again if needed.

3. Restart and you’re done

I hope this helps.

Thanks it was really helpfull, now mi mb is running great but is getting hot .. Any suggestions?

I almost gave up after trying different things SMC and NVRAM reset multiple times, erased my HDD and reinstalled OS twice. Dhalgrensolution seems to work for me and i dont face the lagging performance issues anymore.

Thanks a bunch!

hello Dhalgrewn can tyou please tell me how to do this step ? i have a mac os x maverics version i wanna try this step

1. Go to About this mac under the apple in the upper left and click on More info

2. Click on system report

3. make a note of what it says after Model Identifier

4. go to your master drive – System -Library – Extensions – IOPlatformPluginFamily.kext -Contents – Plugins – ACPI_SMC_PlatformPlugin.kext – Contents – Resources – find the name from step 3 and move it to a folder that you can find again if needed.

3. Restart and you’re done

I hope this helps.

because am having problems with my mac book pro battery it doesnt seem to wanna charge and i get a messsage replace battery now in the upper right next to the clovk on my mac can you tell me how to do this marco

hi rizlee can yo tell me how to do this step i am not sure if it works in my mac os x maveric what i try to do with this is fix a baery problem i have on my mac os x battery wont charge marco:)

hi can you please tell me how to do this steps i wanna fix a battery problem i have on my mac book pro i cant seem to be able to charge it when i try charging it without the cable it shuts down .

i get a message replace battery marco

Thank you for this post! I followed your procedures and was able to get my MacBook Pro running again. I think I have a bad battery which I will replace.

seems you've done this recently and I want to try it also as I am having the same problem. Where exactly do I find the "master drive" to go to the other options? I can't seem to find it anywhere. Thanks in advance.

The master drive is your start up drive. usually it's called Macintosh HD.

Will Bad CONDITION: REPLACE NOW Battery Slow Macbook Pro Air Power & SPEED (Service Soon Dead) - YouTube