Kia Rio S having starting issues at ~60 k miles

What is your question?

I got a new battery that fix the problem for a while. Then, several months after, it didn’t start several times. I took the battery back and they charged it for about 10 minutes. When they put it back in the car started perfectly. About a month later, I could tell my car was getting ready to die. There was so little power I could not lock my doors with the key. Now my car is working again... for now? Test says alternator and battery are good.

What makes this problem better or worse?

It was cold Friday, didn’t start Saturday medium weather and Sunday was warm and started easily.

How long has your 2018 Kia Rio had this problem?

About 5 times in the last two months