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savoirfaire

macrumors 6502
Original poster
Nov 23, 2003
353
38
New England
Attending a conference in DC until Thursday. This morning, my 2012 MBP wouldn't turn on. I had it charging overnight. It turns out that I can power it on when it's plugged in, but when I disconnect the power, it abruptly turns off. The battery is stuck at 53% charge and is not charging when it is plugged in. At least as of a couple of weeks ago, Coconut battery was showing good battery health. I did replace the top case and keyboard about a month ago so I am wondering if the battery connector is somehow loose, but I don't have any tools with me to open it up and can't find anything near the convention center/Apple Carnegie Library where they might sell a pentalobe driver. At worst, I can just keep the laptop plugged in, but I'm thinking there must be a MR member nearby who has one I could borrow, rent, or buy!
 

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canuckRus

macrumors 6502a
May 18, 2014
945
352
Attending a conference in DC until Thursday. This morning, my 2012 MBP wouldn't turn on. I had it charging overnight. It turns out that I can power it on when it's plugged in, but when I disconnect the power, it abruptly turns off. The battery is stuck at 53% charge and is not charging when it is plugged in. At least as of a couple of weeks ago, Coconut battery was showing good battery health. I did replace the top case and keyboard about a month ago so I am wondering if the battery connector is somehow loose, but I don't have any tools with me to open it up and can't find anything near the convention center/Apple Carnegie Library where they might sell a pentalobe driver. At worst, I can just keep the laptop plugged in, but I'm thinking there must be a MR member nearby who has one I could borrow, rent, or buy!
Walmart or hardware store nearby?
 

savoirfaire

macrumors 6502
Original poster
Nov 23, 2003
353
38
New England
Attending a conference out of town? Amazon carries them though.
Thanks, there are a couple of Walmarts and an Ace within a mile radius of me, but it doesn't look like any of them have pentalobe screwdrivers in stock. I do have plenty of tools at home, but I did not think to bring any "emergency" tools with me. I will say that the last time I tried to fly with a wire stripper/crimper they took it away from me in the security line.
 

savoirfaire

macrumors 6502
Original poster
Nov 23, 2003
353
38
New England
Looks like the Best Buy in Columbia Heights ~2 miles away has an iFixit tool set with what I need, so I'm going to head over there now!
 

macsound1

macrumors 6502a
May 17, 2007
829
857
SF Bay Area
I assume you've done a PRAM and SMC reset. I had one machine I needed to do it 7 times in a row for it to start charging again.
PRAM Option + Command + P + R > Apple chime twice (or 7 times)
SMC Hold Shift-Control-Option
 

MacManiac76

macrumors 68000
Apr 21, 2007
1,855
692
Arizona
I assume you've done a PRAM and SMC reset. I had one machine I needed to do it 7 times in a row for it to start charging again.
PRAM Option + Command + P + R > Apple chime twice (or 7 times)
SMC Hold Shift-Control-Option
.
 
Last edited:

savoirfaire

macrumors 6502
Original poster
Nov 23, 2003
353
38
New England
I assume you've done a PRAM and SMC reset. I had one machine I needed to do it 7 times in a row for it to start charging again.
PRAM Option + Command + P + R > Apple chime twice (or 7 times)
SMC Hold Shift-Control-Option
Thanks for that suggestion, I did try doing a PRAM and SMC reset a few times without any luck. (I didn't do it 7 times, though!). After I opened it up, cleaned off the battery connector, and reseated it, it still wouldn't work. Luckily, I just happened to have an unused NuPower battery so I switched them out and now it seems to work fine. It seems strange to me, though, that the battery is shown as holding 51-53% but won't charge and won't keep the Macbook on without being plugged in. Has anyone else encountered that situation before?
 

Fishrrman

macrumors Penryn
Feb 20, 2009
28,726
12,840
I think it's time to start shopping for a replacement.
MacBook Pro 14" or 16"...
 
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