CMOS/PRAM battery for 15" MacbookPro 5, 3 (Mid June 2009)

Hey there!
What CMOS/PRAM battery I should purchase to replace the dead one in my MacbookPro5, 3 (Mid June 2009).
Thanks for any help!
- B

This article stops just short of your MacBook:
Apple Portables: Identifying the right battery--US
If your MacBook has a non-removeable main battery, it probably does not have a backup battery.

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CMOS / RTC Battery for Satellite A100-326?

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I've got my machine open and located the battery but it has no model number on it.
I have contacted a Toshiba assistance center and they replied that the battery is part of the board and the whole board has to be replaced. However, if I can find the reference for the battery, I have a friend in a computer store that will replace it with a new one.
Any help would be great. Thanks!
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Srgio

Hi
Why you want to replace this
Such battery is reachable
To charge the RTC battery you have to connect the AC adaptor to the notebook.
The main battery should be inserted too and the notebook should run for 20.24 hours.
Anyway, as far as I know its a Lithium Ion RTC battery 3V and 14mAh

PRAM battery for iMac 333MHz

I have be trying to upgrade a iMac 333 MHz from 8.6 to 9.2.2
I am up to 9.1 but need to connect to my dsl to do the 82MB download.
I have been moving the iMac around to different electrical outlets now the iMac will not start up.
The date and time each time went to 1956 so I am thinking it is the PRAM battery right?
Does anyone know the type of PRAM battery I need to replace? I do not have the manual or tech specs...
JTS

http://docs.info.apple.com/article.html?artnum=86181 Macintosh Family: Batteries and Part Numbers.
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PRAM Battery for Powerbook G4 17" 1.33 problem

I have an Aluminum Powerbook G4 17" 1.33 GHz computer and need to replace the PRAM battery. This poses a problem. Typically they sell the PRAM battery/USB board as one replacement because the two rechargeable 3.7 v coin CGL 2430 batteries are spot welded & soldered to the USB board in parallel. The replacement part is 922-6064. When I look for a replacement, all I can find are used parts which mean that the batteries have a diminished life. Panasonic stopped making those batteries in 2005 and I can't find anything comparable. Even the places that advertise new parts say they only have used in the end. Next model up, the 1.5 GHz Apple made a battery pack that can be replaced. NewerTech makes that replacement. I would like to replace the batteries on my present USB board - new ones can be soldered or a plug can be added, but I have run into these problems. Those coin batteries are not available and I know the voltage, but not the amperage of those coin batteries that were used. NewerTech can't tell me the voltage/amperage of their battery pack for the newer version Powerbooks, so I don't know if jury-rigging one of those packs would work with my version of the Powerbook. I can't find Apple's specs anywhere for the voltage/amps that should go into the PRAM/USB boards in the 1.33 model and the 1.5GHz model so that I can figure how to do this repair modification. The USB boards for both models look the same, but I don't think that they are, but what is the difference? Anyone have an idea how I can do this modification to add PRAM power to my USB board?

Actually, this is a very minor problem, if the negligible incidence of posts here about replacement PRAM batteries dying is any indication. Apparently there are very, very few users of Powerbooks (going all the way back to the G3s of 1998-2001) whose use of these machines has outlasted a second PRAM battery. I still have a working 2003 Titanium Powerbook with its original PRAM battery in place, a working 1998 Powerbook G3 with its original PRAM battery in place, and a working 1997 Powerbook 1400C with its original PRAM battery in place. I doubt that new replacements are available for any of those batteries, but I wouldn't hesitate to buy used ones if I intended to use any of those computers for several more years. I suggest you go ahead and do the same, and install the used battery yourself to keep the cost down.
Message was edited by: eww

Cmos (rtc) battery replacement for hp G62-b25sa

Hello!
Could anybody help me to replace CMOS (RTC) battery for my laptop HP G62-b25sa pls? And How can I find the correct CMOS battery for this model HP G62-b25sa ?

Hi,
The following manuals will shows you correct part # and how to replace it:
http://h10032.www1.hp.com/ctg/Manual/c02641795.pdf
http://h10032.www1.hp.com/ctg/Manual/c02542455.pdf
Regards.
BH
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Cmos (rtc) battery replacement for hp G62-b25sa

Hello!
Could anybody help me to replace CMOS (RTC) battery for my laptop HP G62-b25sa? And How can I find the correct CMOS battery for this model HP G62-b25sa ?

Hi
Please find the link given below check page number 51 how to replace the CMOS battery on your unit. Part number RTC battery 606015-001.
Link
Let us know how it goes!
"I work for HP."
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Regards
Manjunath

PRAM battery part number??

Hi, I need to buy a new PRAM battery and was wondering if anyone has a part number for it?

The PRAM battery for the computer listed in your system information is part 922-6007; for another type of Mac, check the information in the article I linked to.
(11863)

MacBook Pro PRAM battery? Or something else?

MacBook Pro 5,3
Intel Core 2 Duo 2.66 Ghz
MBP53.00AC.B03 1.48f2
Charge Information: Charge Remaining (mAh): 5628
Fully Charged:     Yes Charging:     No
Full Charge Capacity (mAh):     5698
Health Information: Cycle Count:     435 Condition: Normal Battery Installed:     Yes Amperage (mA):     0
Voltage (mV):     12447
Well the last thing that happened was rather odd.    I put in an SD card, and it wouldn't read it.     Then all of a sudden clicking on any of the drives or icons on the Dock wouldn't work.      The keyboard just froze in place.       I forced rebooted with the power button. It sat there spinning its sunflower on a gray Apple logo screen for over 10 minutes.   I tried zapping the PRAM to no avail, it sat there another ten minutes with the sunflower and didn't go anywhere.
I rebooted with command-S.    I did a /sbin/fsck -fy and /mount -uw / and the fsck process took about 5 minutes and it was happy again when I exited. The hard drive is only about 2/3rds full.    And now the SD card works fine.
So was the directory just messed up all along, and it just wouldn't read the SD card until fixed it?
Is there a firmware update for this machine?
Is there a PRAM battery for this machine?
Or is the main built-in battery just starting to die?
There is nothing funky installed. Just the plain Safari, LibreOffice, Firefox, and 10.7.3.
P.S. The mountain Lion in my signature is for another machine.

So was the directory just messed up all along, and it just wouldn't read the SD card until fixed it?
Is there a firmware update for this machine?
Is there a PRAM battery for this machine?
Or is the main built-in battery just starting to die?
Yes, I'd say the directory was messed up. I suggest you repeat the process of repairing the hard drive and permissions using Disk Utility. You will have to boot from an installer disc to repair the drive.
Yes. MacBook Pro EFI Firmware Update 1.7.
I do not know. I'm not sure whether Apple stopped using them by that model.
There's no evidence to suggest the battery is dying.

New Battery for my MacBook Pro mid 2009/neuen Akku für MacBook Pro Mitte 2009

Hey guys,
I'm looking for a new battery for my MacBook Pro 15" mid 2009. Can I take the battery with 77Wh or can I only take the battery with 73Wh?
It's the model no. of the battery is "a1321". Please help me.
Hallo Leute,
ich brauche für mein MacBook Pro 15" Mitte 2009 einen neuen Akku. Kann ich da auch den Akku mit 77Wh nehmen oder funktioniert nur der Akku mit 73Wh.
Modell-Nr. vom Akku ist: "a1321". Bitte helft mir.

Also - the one I'm looking at and like is a 2.5" ... Does this matter? Will it fit properly in my Macbook?
This one - http://www.newegg.ca/Product/Product.aspx?Item=N82E16822178340

Directions for changing pram battery on imac DV

Hi,
A friend of mine has an imac 400 DV slot loader with a dead pram battery. I look after this computer for them but have never changed the battery on one of these. Can anyone give me directions and/or photos? I've had a look through older questions but the links all seem to be out of date.
Thanks,
James

This Macworld article has photos that illustrate removal of the bottom housing and EMI shield, to access the motherboard for upgrades. Some experienced users have been able to replace the battery, by accessing it through the memory door on the bottom. This involves the risk of letting it slip out of your fingers and then having to maneuver/tilt the iMac about, to remove the loose battery. Prior to removal, you should note the battery's orientation as to polarity (marked on the motherboard).

PRAM battery reset or similar for PowerBook G3 400MHz Lombard

Hello,
I recently acquired a PowerBook G3 400MHz Lombard? (not pismo)- with the battery dead and it not getting any signs of life beyond a green light on the display or the caps-lock. I was wondering if there is a simple fix that might get this going, similar to removing the PRAM battery on a Pismo that has been sitting there til the batteries drained. Any help would be appreciated so I'm headed in the right direction on this.
Thanks.
-m

Hi jpl,
First let me say a big thank you for such a prompt response. I love this place because of participants like you... thanks.
You have a Powerbook G4 in your profile; if you do
not have the Powerbook G3 Series Bronze Keyboard, the
following does not apply. If you have a G4, head over
to this forum:
http://discussions.apple.com/category.jspa?categoryID=
124
Sorry for any confusion. I indeed have a G3 Lombard with the bronze keyboard (Got it in 1999). I then upgraded to the G4 about 3.5 years ago. And just last week I got me a shiny new intel iMac.
The Lombard is currently running Jaguar, but its gotten sluggish and has run out of space (original specs). I want to reinstall OS 9, but I have this current issue with starting it up.
Generally, if the powerbook does boot up, even
occasionally, you do not have a corrupted power
manager. The procedure you quote is for a powerbook
that does not start at all, even after a normal power
manager reset, and this usually occurs when a 'book
has been unused for a few months...this allows the
batteries to run flat and corrupt the power manager.
Unlike desktop computers, powerbooks can run fine
with a dead backup battery.
The computer is being used almost daily...
I would look first at other potential problems...
- Do you have a working main battery?
No.
- Once the 'book is running, does it perform
normally? Can you sleep/wake the 'book and also
perform a restart?
Once it's running it performs normally. I can sleep and wake. I CANNOT perform a restart.
- Once running, open the System Profiler >
Memory...does it report either 512K or 1MB of L2
cache?
My 'book is at home currently... I will check when I get home.
- When shut down, remove the main battery and optical
drive. With the power adapter connected, press the
reset button on the back panel to reset the power
manager, wait 5 seconds, then press the power button.
Does it •always• start normally from a cold start
when following this procedure?
I want to say no, but I will double check this as well when I get home.
Thanks again for your help!

6400 PowerPc Performa Pram Battery issues - remove for storage?

Hello,
I have a 6400 that I want to use, primarily for storage of some older files, which I've now transferred onto it.
The unit obviously has a weak 4.5 volt alkaline Pram Battery as the Clock reverts to 1956 when is unplugged overnight.
My specific question is:
With all these vintage Performa's, will they work correctly and consistantly WITHOUT a Pram battery in them at all? (Realizing that the time must be set each time up).
I know WITH a weak Pram Battery random things begin to happen, and video can even be lost. My thinking for long term storage of an old unit would be to remove a weak battery before random problems degrade the unit.
Hence to iterate, will these units maintain the factory settings better and more consistantly WITHOUT a battery than with a Weak one, not losing the ability to come up.
Lowell

Jeff,
Thanks on your 64/6500's. I'm going to do just that.
My question was partly technical curiosity in that I've seen and read dozens of problematic symptoms from bad or weak batteries, and none of the answers ever said JUST TAKE
them out and leave them out until . . .
On that basis, I still can't quite figure out how all that relates to CUDA resets on a unit with problems. On most Performa's the board must be out to reset CUDA, and it would seem that the board would need power to reset?? (I'm speaking of a unit that is down, perhaps with a question mark or no hard drive showing, etc.) I'll keep reading.
FYI, I did make a battery pack fm 3 aa batteries for the 6360. Found one really interesting tidbit on AppleFritters, saying also that a 9 Volt battery has two 4.5's inside, and one guy used ONE of those.
Lowell
I removed the batteries from my retired 6400s and
6500s, primarily to prevent leakage (as Grant has
mentioned). I've seen the corrosive damage to
motherboards, caused by leaking alkaline solution
from those batteries. When I periodically start up
the 6400/6500s, I reset the date & time so that any
file modifications have the correct information.
Other than that inconvenience, the computers
function normally.

Battery for PRAM ?

Is there a battery for PRAM inside the Mac Pro just like the Power Mac G5?

http://support.apple.com/specs/macpro/Mac_Pro.html
Developer Note good to know but makes no mention.
Batteries:
http://docs.info.apple.com/article.html?artnum=86181
http://www.apple.com/support/macpro/
http://manuals.info.apple.com/en/MacProBatteryDIY.pdf

Replace CMOS battery for dv4 - 2165dx laptop

Please I need help on how to replace CMOS battery for dv4 - 2165dx notebook pc.
This question was solved.
View Solution.

foanti wrote:
Please I need help on how to replace CMOS battery for dv4 - 2165dx notebook pc.
Hi,
Page 54 in this manual: http://h10032.www1.hp.com/ctg/Manual/c01963667.pdf
Dv6-7000 /Full HD/Core i5-3360M/GF 650M/Corsair 8GB/Intel 7260AC/Samsung Pro 256GB
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HP Touchpad provided by HP
Currently on Debian Wheeze
*Please, help other users with the same issue by marking your solved topics as "Accept as Solution"*

Computer clock resets to 1969. PRAM battery probably not the issue.

I have a PowerMac G4 mirrored doors computer running Tiger 10.4.11 that occasionally starts up with that error message saying: "Your computer's clock is set to a date before March 24th, 2001. This may cause some applications to behave erratically."
I know all about resetting the PRAM, resetting the NVRAM, and replacing a weak, or expired battery. I've read the relevant posts on the subject, in which well-intentioned guides say that the problem is "usually" or "generally" related to the PRAM battery. Well, I wish it could be that simple, because I have already had a new battery installed, and the problem continues. It is intermittent; it's been occurring for about six months now; and it persists.
I seek technical assistance and successful, problem-solving suggestions that go beyond merely suggesting that I zap the PRAM or replace the battery.
If there are potential SOFTWARE problems, please direct me to those potentially damaged files. None of the disk utilities that I have used—including Disk Warrior, TechTool Pro, OnyX, Cocktail, or Drive Genius— find anything wrong with my hard drive or the files on it. No corrupted resources are reported. Additionally, Intego's Virus Barrier finds no infected files either.
However, a FileBuddy search of files modified before 3/25/2001 finds several dozen files with improbable dates of 12/31/1969 or 1/1/1970. Fewer files dated 12/31/1969 occur after I go to the Date/Time preferences pane and reset the clock to the current date/time and then restart my computer, especially in regards to system-related files. Nonetheless, several dozen files with a 12/31/1969 still remain, even after the date/time reset and the system restart.
I do not know if any of those pre-historic files are playing a role in this chronic problem, so I offer that information for the technically more astute to ponder upon and factor in to any solutions which might be offered. I have read posts where someone might suggest a re-install of Tiger, but the original poster almost always reports that re-installing Tiger did not eliminate problem, so I would prefer suggestions that rely on a scalpel rather than a sledge hammer.
If someone suspects that there may be hardware problem, I would like to hear theories along that line, too, although I am unlikely to consider gutting the hardware items just to retain the attractive computer case. Even though I do have other computers (an iMac G5 and a MacBook Pro), the PowerMac G4 is my preferred workhorse, and it is the only one configured to run Final Cut Pro (version 4.5; I can't afford to upgrade now), so I want to keep it functional without a major investment into an older machine.
When the computer clock problem first reared its irritating head several months ago, it was accompanied with kernel crashes that turned out to be related to the nVidia video card. I brought the machine in to a local shop, because it was refusing to power on. They installed a new battery to replace the original, probably weak original battery, and they replaced the probably defective nVidia video card with a used nVidia card I found on eBay. The shop also claimed that I needed to replace the motherboard and the power supply to ensure that the G4 would power on and that it would present a desktop without the warning message about the computer clock being set to 12/31/1969.
I decided to reject their assessment, since the whole repair job would have amounted to about $1,100. It seemed like an excessive solution. Since taking the G4 back about three months ago with only the new battery and the replacement video card installed, the computer has powered on every single time without fail, which, to my non-technician mind, would appear to indicate that the power supply is OK. However, I do still get an occasional warning about the computer clock being set to a date before March 24th, 2001.
I do not have the technical expertise or repair knowledge to know if the problem is hardware-related, software-related, power supply-related, or a complex interaction between all of them. If someone can suggest a permanent fix to eliminate the computer clock error problem WITHOUT requiring me to make a major investment in repairing or replacing hardware components, that would be ideal. On the other hand, if this clock problem is merely is an irritant, but not a sign of something more serious or expensive, then I am willing to live with it and get around the problem by going through the steps of resetting the clock when required and then restarting the computer with a correctly set clock.
My main goal, of course, is to have a reliable, stable computer. If it costs too much to eliminate the computer clock irritation on a permanent basis, then I am willing to live with the problem, as long as its presence does not disrupt my work flow. In that case, I would appreciate it if someone could explain what might be going on, so that I know what to expect and what to do about it.
I hope this is sufficient information with which to make a diagnosis and recommendation. If not, ask for more. Thanks.
bowlerboy

Short answer =
5) Upon reboot after re-connection and re-start, the Date & Time shows...
a) in the Date & Time pane: 12/31/1969 at 7:00 PM, and counting
b) in the Finder's menu bar: 7:00 PM, and counting
What do the results of this test tell you? Is this a software or a hardware problem?
======================================================================
Long answer =
Thanks, BDAqua, for offering your help. I'm not exactly new to these forums, but somehow my previous contributions have all been wiped out, so I've restarted under a new account name.
I've had my G4 MDD for five years, and it's always been quite stable for me, so I'm not quite sure that this model is "cantankerous." I do find the computer clock error message irritating, though, so it would be nice to know the source of the problem and its permanent solution.
Since my original posting, I elected not to Shut Down the G4 to see what would happen. It functioned just fine since then, allowing me to create some short Final Cut Pro movies as Christmas presents to family members. With one exception, all other applications also functioned without problems. The only problem I'm encountering has to do with H-P Photosmart Studio, an application bundled with the HP All-in-one model C7280. It will not settle down to work, forcing me to Force Quit it every time. Since that app works fine on my iMac G5, I decided to trouble-shoot it by reinstalling the HP software, a process that requires me to Shut Down. (If possible, I want to see if the problem is with the HP software, or with Tiger on my G4.)
However, before I can get even get to trouble-shooting the HP Photosmart, the G4 gives me that computer clock error upon re-boot. In the past, the Date & Time error message has appeared upon a cold reboot, no matter whether I had reset the Date & Time in the preference pane via the Network clock or manually. However, I never conducted my tests in conjunction with disconnecting the A/C power cable. So, I decided to try the the test you suggested. Here are my observations and the results of the test.
1) Upon Shut Down, cool down, and restart, I get the computer clock error message mentioned at the beginning of my original post, telling me that my clock is set to a earlier date.
2) When I open the Date & Time preferences pane, however, the date and time shown there (as well as on the Finder's menu bar) is current.
3) The Network setting was ON, so, to comply with this test, I unchecked the "Set date & time automatically" box. I do not need to reset date and time manually, because, as I mentioned they ARE set correctly, even though the message I got upon restart said that they are not. (If memory serves me correctly, though, the Date & Time panel would actually show 12/31/69 as the computer clock's read-out, so this discrepancy is somehow connected to this problem. )
4) I shut down the G4 for 2 hours, and I disconnected all cables and plugs to it, including A/C power.
5) Upon reboot after re-connection and re-start, the Date & Time shows...
a) in the Date & Time pane: 12/31/1969 at 7:00 PM, and counting
b) in the Finder's menu bar: 7:00 PM, and counting.
6) I take screen captures of the error message and the menu bar: both .PNG files are time-stamped as of 12/31/1969 at around 7:01 PM.
7) I will now reset the clock to the current Date and Time by turning the Network time feature back on, so I can get on with my work while the trouble-shooting process continues.
What do the results of this test tell you? Is this a software or a hardware problem?
If it's a software problem, then should I do I clean install of Tiger? If I do that, is there any evidence that a clean install will do any good to eradicate the problem?
On the other hand, if this is a hardware issue, is it contained to merely being an irritant that I can fix merely by adjusting the Date & Time whenever the problem occurs (which I can live with, as long as the system is stable after that fix), or is this error message regarding a sign of something more ominous failing on the motherboard?
bowlerboy

CMOS/PRAM battery for 15" MacbookPro 5, 3 (Mid June 2009)

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