Macbook Pro turns off without warning!!

[Eazkk123]

My 17" intel core 2 duo Macbook Pro turns off without warning, it does not go to sleep mode it just turns off. This happens when it is unplugged and when the battery reaches 40% - 50%. This problem occurred after the 10.5.3 update and I thought by upgrading to 10.5.4 the problem would be fixed, but this sadly has not been the case.

I have the latest firmware & software updates, i've done the PRAM and NVRAM reset and reset the SMC but with no avail.

Help needed thank you

Battery Information:

Model Information:
Serial Number: SMP-ASMB014-356a-3a4
Manufacturer: SMP
Device name: ASMB014
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0202
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 1778
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 1954
Health Information:
Cycle count: 536
Condition: Good
Battery Installed: Yes
Amperage (mA): 627
Voltage (mV): 12597

System Power Settings:

AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: 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
Charging: Yes

 

[hob]

Sounds to me like a bad battery. You'll want to get it swapped out if it is.

I say battery fault because if it were a hardware/software fault you'd expect some sort of kernel panic behaviour. As it's just shutting off it's probably the battery.

 

[liquidh2o]

take it in, or call applecare. Doesn't seem like an issue that will be easy to remedy