Is it possible to improve the condition of MacBook battery showing "Condition: Replace Soon"?
Go to the Apple menu and choose "About This Mac"
Click "More Info..."
Click "System Report..."
Under Hardware, click "Power"
Under "Battery Information" you'll find "Health Information"
Under Health and Information you'll see "Cycle Count" and "Condition"


Cycle count can drive condition: over a certain numbers of charges and discharges condition will automatically drop. Given the age of your computer, my guess is you have a high cycle count.