Q: late 2011 MBP shuts down when unplugged

hello, my late 2011 MBP (on 10.9.5) was just recently at apple, the logic board was replaced. soon after i got it back, it started to shut down when unplugged. re-booting works, but only for a minute. the system report has the following, does anything look out of line here? it seems like a battery issue, i'm on the original battery, but i figured battery wold just get shorter and shorter, not just cease working.

Model Information:

  Serial Number: D8***********LAZ

  Manufacturer: SMP

  Device Name: bq20z451

  Pack Lot Code: 0

  PCB Lot Code: 0

  Firmware Version: 406

  Hardware Revision: 2

  Cell Revision: 158

  Charge Information:

  Charge Remaining (mAh): 6432

  Fully Charged: Yes

  Charging: No

  Full Charge Capacity (mAh): 6433

  Health Information:

  Cycle Count: 405

  Condition: Normal

  Battery Installed: Yes

  Amperage (mA): 0

  Voltage (mV): 12484

System Power Settings:

AC Power:

  System Sleep Timer (Minutes): 0

  Disk Sleep Timer (Minutes): 0

  Display Sleep Timer (Minutes): 30

  Wake on AC Change: No

  Wake on Clamshell Open: Yes

  Wake on LAN: Yes

  Current Power Source: Yes

  Display Sleep Uses Dim: Yes

  GPUSwitch: 2

  PrioritizeNetworkReachabilityOverSleep: 0

  Standby Delay: 4200

  Standby Enabled: 0

  Battery Power:

  System Sleep Timer (Minutes): 15

  Disk Sleep Timer (Minutes): 10

  Display Sleep Timer (Minutes): 15

  Wake on AC Change: No

  Wake on Clamshell Open: Yes

  Display Sleep Uses Dim: Yes

  GPUSwitch: 2

  Reduce Brightness: Yes

  Standby Delay: 4200

  Standby Enabled: 0

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: Yes

  ID: 0x0100

  Wattage (W): 85

  Revision: 0x0000

  Family: 0x0085

  Serial Number: 0x****4bd

  Charging: No