Agincourt Hyundai

So I was having troubles with my car battery recharging so I brought the car over to another dealer in Scarborough before this (Not going to name it). They told me the alternator was fine and it was ok but it is my battery that needs replacing, they even showed me some print out of some machine doing a test. I was very mad because I had to boost my car every morning and I just replaced my battery a few days ago. I decided to try another local dealership. The experience was actually complete opposite. They asked me questions to help diagnose the issue. Near the end of the whole thing, they replaced my alternator for me and the kicker was the print out showed the battery was fine and the alternator didn't have the correct voltage. I think the other dealer just wanted me to spend money.