Macbook Pro battery stopped working after water spill.

Question

Hello,
I own a Macbook Pro 13 inch mid 2010 that suffered water damage, after that it stopped functioning so I unplugged and plugged again the battery, the computer than turned on and now it's working well. The only issue I'm having is that now it only works when connected to a power source, there is a message telling that my battery has to be replaced (Condition: Replace now). My question is: If I replace the battery would the problem be solved or it may be a problem in my logic board due to the liquid spill? Can anyone help me?
Battery Information:
  Model Information:
  Serial Number: 9G01804RUD3MA
  Manufacturer: DP
  Device Name: bq20z451
  Pack Lot Code: 0
  PCB Lot Code: 0
  Firmware Version: 201
  Hardware Revision: 2
  Cell Revision: 158
  Charge Information:
  Charge Remaining (mAh): 0
  Fully Charged: No
  Charging: No
  Full Charge Capacity (mAh): 0
  Health Information:
  Cycle Count: 231
  Condition: Replace Now
  Battery Installed: Yes
  Amperage (mA): 0
  Voltage (mV): 4064
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes): 10
  Disk Sleep Timer (Minutes): 0
  Display Sleep Timer (Minutes): 10
  Wake on AC Change: No
  Wake on Clamshell Open: Yes
  Wake on LAN: No
  Current Power Source: Yes
  Display Sleep Uses Dim: Yes
  PrioritizeNetworkReachabilityOverSleep: 0
  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: 0x0085
  Serial Number: 0x00a1c4ce
  Charging: No

Answer 1

You have "killed" your Macbook.
If you let it dry out, it MAY start working again, but if it does, this will inevitably be temporary as corosion sets in and does futher (and almost certainly terminal) damage.
The only benefit of letting it dry is that IF it works again, you will be able to save what is on the HDD.  Only important if you don't have a backup.......you DO have a backup don't you???
Irrelevant whether you have AppleCare or not - water damage isn't covered.  And the cost of repairs is likely to exceed the value of your MBP.  It is worth taking it in for a free evaluation of the cost of a repair.
Your best option may be to sell it for spares and invest in a new computer - which will be kept a long way from any drinks or other sources of liquid damage!