Battery not charging, firm green light on AC adapter

My MBP is about 4 years old, and the old battery had a cycle count of 1000+ so I bought a replacement last week and replaced it myself. Everything worked great (patted myself on the shoulder) until a few days ago I noticed it wasn't charging. The green LED indicator is on so I think the Magsafe isn't broken.

I've tried resetting the SMC & PRAM (or I think I did) but no luck. Not sure what my other options are but I think I'm going to try wipe the connectors with alcohol & cotton swab next.

Here is the info on my batts / AC:

Battery Information:

Model Information:

Serial Number: 9G925P26G4M0A

Manufacturer: PS

Device name: CL5322

Pack Lot Code: 4274

PCB Lot Code: 0b05

Firmware Version: 0000

Hardware Revision: 0000

Cell Revision: 0000

Charge Information:

Charge remaining (mAh): 0

Fully charged: No

Charging: No

Full charge capacity (mAh): 3944

Health Information:

Cycle count: 3

Condition: Normal

Battery Installed: Yes

Amperage (mA): -2626

Voltage (mV): 11069

System Power Settings:

AC Power:

System Sleep Timer (Minutes): 60

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 15

Wake On AC Change: No

Wake On Clamshell Open: Yes

Wake On LAN: Yes

Current Power Source: Yes

Display Sleep Uses Dim: Yes

Battery Power:

System Sleep Timer (Minutes): 10

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 2

Wake On AC Change: No

Wake On Clamshell Open: Yes

Display Sleep Uses Dim: Yes

Reduce Brightness: Yes

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: Yes

ID: 0x0100

Wattage (W): 60

Revision: 0x0000

Family: 0x00ba

Serial Number: 0x00bb5bdf

Charging: No

Would it be safe to assume it's the DC in board or logic board that's causing this?

Thanks in advance!!

Answered! View the answer I have this problem too

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I also replaced the RAM & hard drive if that could have anything to do with it


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Not necessarily - I have know new Chinese batteries to fail straight out of the box... If you can try the battery in another laptop - if that also fails to charge Contact your vendor about this.

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Oh I see. But if istat and coconut battery are both saying my battery health is good (or at least normal), it could still be faulty?

All of the sudden now it is saying that it's charged, but as soon as I unplugged the AC Adapter, the MBP dies. It seems like it refuses to use power source from battery.

Unfortunately I don't have another MBP to test out the battery / charger, and I am not under warranty anymore.


Yes - these batteries are smarter than most - there's a mini computer built into them it monitors and controls charging because there's a real danger of fire if they malfunction.


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As Machead explained the the battery pack has a computer within it to monitor and control the charge. I would recommend resetting the SMC which should clear out any incorrect values Apple TN on reseting the SMC. That should fix things if the battery pack is good.

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Resetting the SMC fixed the problem with my wife's 2010 MBP. Thanks!!


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Robin will be eternally grateful.
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