Hello!
I don't know what to do. My 2013 Chevy Malibu one day died. Found out that the alternator was toasted. Got a replacement, and it was working again. No issues. Suddenly my car died again, the battery dead. Charged up the battery and then tested the battery and found the battery was not holding charge. Replaced the battery. Another week goes by and the car dies again. When I say dies, it locks up, I can't even put it into neutral. This time I get a jump and drive straight to an auto store, they run another test and say it is the alternator again. Replace the alternator for a second time. Got the car up and running, but about another week later the car won't turn over. Took the battery to the auto store for a charge. Once charged bring the battery home, install it, and drive the car to the auto store to test both battery and alternator. The test came back good. Now we think it is a draw on the battery. Just went through the entire fuse box pulling one fuse at a time to see where the draw was coming from and the light on the meter never went off. Now I don't know what to do. I have had this car for 10 years and no major issues. I do have codes on the car but have been driving with them while limping the car along. I am one of those people who live paycheck to paycheck and cannot afford to pay a mechanic. I have listed the codes below. Could any of these codes contribute to this issue?
P00B7
P0411
P06DE
P0521
P0442

Anything helps! As I don't know what to do and I am a one car family. If I don't have a running vehicle I don't work.