Possible to test Magsafe Board itself?

Long story short - spilled a giant container of water on my MBP yesterday and it immediately powered off. I quickly shook the water out, disassembled it, dried everything, and put it back together. It powered right on and acted completely normal - or so I thought - now today I've tried to charge it a few times and it takes much longer than normal to get anywhere charge wise but it does in fact charge.

I'd like to see if replacing just the magsafe board will solve my problem - is there a way to diagnose the magsafe board itself or do I have to throw a part at the problem and find out that way? If it's the logic board then the laptop will be going on eBay as a water damaged unit or retired to media box status.

 

No it's not.