Exploded battery in 2012 Macbook pro

bbridges

macrumors newbie
Original poster
Feb 20, 2011
20
2
usa
Hi Guys,
A few days ago, I noticed that the trackpad on my 2012 macbook pro was jammed down and wouldn't click. I normally use a bluetooth keyboard and mouse so I never touch the computer really. Anyway, after trying to loosen it and looking around the web, I decided to open the back to see if I could see anything causing the problem.
When I started loosening the screws, I could tell immediately that they were very tight and when the first one came out, the cover sprang open like it was under pressure. When i got them all off, I was kind of shocked to see that the battery had sort of ballooned out and was probably an inch thicker than normal. It had been pressing against the casing.
So I ordered a new battery and waiting for it to arrive with hopes that everything will be ok.
But here is my question. Is this a known problem and can this cause problems with the function of a bluetooth mouse? I mean, can this pressure cause signals to be triggered from the trackpad that interfere with normal operation? I ask because before all this, I had noticed that I was having a lot of weird problems with my mouse and I'm wondering if all of that was a result of this battery.
Thanks for any suggestions.
 

Howard2k

macrumors 68030
Mar 10, 2016
2,736
1,984
It expanded, it didn't explode. :)
Yes it's a known issue, that's what these batteries often do when they fail. It's not an Apple issue, it's a chemistry thing.

Were you monitoring the battery status previously with coconutbattery or anything like that?

For bluetooth impact, I wouldn't think so, unless it was pressing against a part of the circuit board like you said.
 

capuzino

macrumors regular
Jun 10, 2013
126
46
Finland
This might fix the mouse issues:

Open System Preferences
-> Accessibility
-> Mouse & Trackpad
-> then select "Ignore trackpad when mouse or wireless trackpad is present"
 

Maxx Power

macrumors 6502a
Apr 29, 2003
863
331
My 2013 MBP did the samething. The battery status only occasionally mention that it needs service and only when battery was low and under heavy load. I am going to wait for a bit and see if Apple offers a repair program. I believe Dell offered free exchange programs for their XPS line of laptops when they also bulged.
 

leman

macrumors G4
Oct 14, 2008
10,224
4,725
That’s what happens to old batteries. In fact, it’s a safety feature - the battery is allowed to boost instead of actually exploding. It’s also a good reason why you shouldn’t operate a battery that’s over 5 years old and why one should take the service battery warning very seriously.
 

pshufd

macrumors 68000
Oct 24, 2013
1,543
975
New Hampshire
I had this problem with my 2008. I brought it to the Apple Store and they took the old battery, put in a new one and that was it. No charge. The laptop was about four years old.
 
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jerryk

macrumors 603
Nov 3, 2011
5,036
2,482
SF Bay Area
Batteries have a finite lifespan based on time and number of cycles. And as they age, they can produce excess gases and expand. Getting 7 years before replacing is good.

Apple has some guidelines ( https://support.apple.com/en-us/HT201585), this document does not not mention the age issues. But their batteries are not magic, so they also fail due to age.
 
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bbridges

macrumors newbie
Original poster
Feb 20, 2011
20
2
usa
Thanks for all the replies. I removed the battery and expect a replacement today. The trackpad was being pressured from below and that caused problems that actually continued after removing the battery but I put it in a baggie with Alcohol and let is soak to loosen everything up and now it's working like new.
I never move the computer these days so I don't really need a battery but would rather have it just so I don't lose anything if it gets unplugged and I understand there is a performance drop without the battery.
 

bbridges

macrumors newbie
Original poster
Feb 20, 2011
20
2
usa
This might fix the mouse issues:

Open System Preferences
-> Accessibility
-> Mouse & Trackpad
-> then select "Ignore trackpad when mouse or wireless trackpad is present"
Thanks for the suggestion. I tried to do that but it is not active unless you're using an Apple brand mouse.
[doublepost=1549973808][/doublepost]
It expanded, it didn't explode. :)
Yes it's a known issue, that's what these batteries often do when they fail. It's not an Apple issue, it's a chemistry thing.

Were you monitoring the battery status previously with coconutbattery or anything like that?

For bluetooth impact, I wouldn't think so, unless it was pressing against a part of the circuit board like you said.
I wasn't paying attention to the battery in any way because A. I'm lazy and B. I basically use it as a desktop and never depend on the battery anymore.
[doublepost=1549973879][/doublepost]
all I want to know is where did you dispose of the bomb ? :confused:
I have it on my porch and am trying to figure out where I can drop it off. I'm sure one of these big box stores has something right?
 

willmtaylor

macrumors G4
Oct 31, 2009
10,275
7,802
Here(-ish)
Thanks for the suggestion. I tried to do that but it is not active unless you're using an Apple brand mouse.
[doublepost=1549973808][/doublepost]
I wasn't paying attention to the battery in any way because A. I'm lazy and B. I basically use it as a desktop and never depend on the battery anymore.
[doublepost=1549973879][/doublepost]
I have it on my porch and am trying to figure out where I can drop it off. I'm sure one of these big box stores has something right?
First of all, make sure it’s in a nonflammable environment so as to. It cause any damage if it worsens (e.g. a bucket of sand or kitty litter).

Then, follow this link: https://www.ifixit.com/Wiki/E-Waste
 

jerryk

macrumors 603
Nov 3, 2011
5,036
2,482
SF Bay Area
I have it on my porch and am trying to figure out where I can drop it off. I'm sure one of these big box stores has something right?
Our local Best Buy has a battery drop off. But, I don't know if that includes laptop battery of just AA Li batteries. If you have a Best Buy you might want to give them a call.
 
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