MacBook Pro charging watts

I had a hot coffee accident in my office bag from my thermos yesterday and all the coffee leeked in the bag. I had in my bag both my MacBook Pro 2015 and 13 inch and it's charger.

I believe that the actual notebook did not had water damage since it was dry, the only worrying part was that there was a part at the back of the notebook that had a lot of humidity (light drops of water) because the coffee was hot.

The charger though had lots of coffee around it and inside.

I dried the notebook, and I also dried the charger with paper. I then connected the charger to the notebook to see if it was working. The green/orange light on the connector was not going on. I then left the charger under sun for 2-3 hours to dry.

Second try and the light on the connector was going orange, green and sometimes it was switching off.

Today, I finally decided not to play with the charger and bought a new one, since I could fry my notebook. The new charger is working perfectly.

Although I opened the coconutBattery app (app that shows your battery info) and I noticed that the notebook was charging with 38 watts (that number was changing every few mins) while the charger for this notebook is magsafe 2 60 watts. I know that usually MacBook Airs use 45 watts. So my question is: Is it normal for a MacBook Pro to charge with less watts since the charger that was designed for it is 60 watts or shall i worry that there is probably water damage in my notebook and now it is not sucking the correct energy it needs to property charge the battery?