I am running a Late 2008 Aluminum Unibody Macbook. It always shuts down at random times, even when the battery is fully charged. I have reset my SMC and repaired my disk in Disk Utility, but the problem is still there. Battery Information: Model Information: Serial Number: 6N852045G2VKA Manufacturer: SMP Device name: bq20z951 Pack Lot Code: 0000 PCB Lot Code: 0000 Firmware Version: 002a Hardware Revision: 000a Cell Revision: 0100 Charge Information: Charge remaining (mAh): 2271 Fully charged: Yes Charging: No Full charge capacity (mAh): 2271 Health Information: Cycle count: 270 Condition: Check Battery Battery Installed: Yes Amperage (mA): 191 Voltage (mV): 12614 Any fixes?? Thanks!