The battery in my macbook is not charging

the battery in my mabook is not charging

I am also having problems with my mac charging. The light does not come on at all and it HAS to stay plugged in for the computer to stay on. When I push the battery button on the back, only one light comes on. If the cord gets pulled out, the computer completely shuts off and you have to turn it back on and start up the computer all over again. It never charges and right now it says Not Charging. We're down to about 16%. We took it to the apple store a couple months ago and he thought it was the logic board. But before we spend that kind of money on one and after reading some things on here, I'm wondering if it could be the battery. Any help would be greatly appreciated! And here is the battery info:
Battery Information:
  Model Information:
  Manufacturer:          DP
  Device Name:          ASMB016
  Pack Lot Code:          2
  PCB Lot Code:          0
  Firmware Version:          102a
  Hardware Revision:          500
  Cell Revision:          102
  Charge Information:
  Charge Remaining (mAh):          723
  Fully Charged:          No
  Charging:          No
  Full Charge Capacity (mAh):          4752
  Health Information:
  Cycle Count:          857
  Condition:          Normal
  Battery Installed:          Yes
  Amperage (mA):          0
  Voltage (mV):          11148
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes):          10
  Disk Sleep Timer (Minutes):          0
  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
  Current Power Source:          Yes
  Display Sleep Uses Dim:          Yes
  PrioritizeNetworkReachabilityOverSleep:          0
  RestartAfterKernelPanic:          157680000
  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
  RestartAfterKernelPanic:          157680000
Hardware Configuration:
  UPS Installed:          No
AC Charger Information:
  Connected:          Yes
  ID:          0x0100
  Wattage (W):          60
  Revision:          0x0000
  Family:          0x00ba
  Serial Number:          0x003c721d
  Charging:          No
Thanks in advance for the help!

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