What would fix MBP that won't use battery after water spill?

I spilled water across my MBP keyboard. I quickly Shut Down, then left like a teepee overnight. In the morning I dismantled completely. Took the Logic and all other non glued parts out. Spotted some light water here and there but not on any circuits. There was some slight corrosion on first pin of the Battery connector board which I cleaned with board cleaner. I left parts to dry longer then reassembled.

What I found on power up is that the Battery always indicates 0% and will power off the moment the MagSafe is removed. The MagSafe light is green. Also, the machine runs a bit slower.

The Power / Battery Information is:

Model Information:

Serial Number: D864192Y07RF9CPA4

Manufacturer: SMP

Device Name: bq20z451

Pack Lot Code: 0

PCB Lot Code: 0

Firmware Version: 702

Hardware Revision: 1

Cell Revision: 1206

Charge Information:

Charge Remaining (mAh): 0

Fully Charged: Yes

Charging: No

Full Charge Capacity (mAh): 0

Health Information:

Cycle Count: 549

Condition: Replace Now

Battery Installed: Yes

Amperage (mA): 0

Voltage (mV): 8347

Coconut Battery shows:

Current Charge: 0

Full Capacity: 0

Battery usage: 0

Power adapter: Connected

Battery failure: yes

So, the battery is talking, but is reported to be bad. Is there anything here that indicates anything else needs fixing besides the battery? What would fix this Late 2013 MBP?

Eternally grateful,

Aaron