alternator, battery problems?

[flyers21fan]

Here is my problem i had been noticing some battery issues with my battery gauge dropping while having a lot of electronics on so i took it to have the battery and alternator tested and they said the alternator was putting out higher volts which is a sign of it going bad and was killing the battery so i went out and bought a replacement oem bosch alternator and a optima yellow top battery. It was working great for a few days but now i'm starting to see some of the same issues as before. I havent been able to get the system checked again but will do so tomorrow if anyone can help in the meantime would be greatly appreciated.

 

[flyers21fan]

Update i was able to take it in today and have it tested and they said alternator, starter and battery are all fine. I did notice a wet spot on the liner under the hood above the alternator and serpentine belt.