Need some help

So my laptop charger was going in and out for a minute so I replaced it with a new one. The new one lasted 3-4 days then suddenly stopped working all together. Did I buy a fluke charger? I did a diagnostic check on my laptop. The battery on my laptop showed there was no issues. Do I buy another charger? Or could there be something wrong with my laptop causing the chargers to go out? My laptop isn’t even a year old since I bought it. I just don’t want to buy another charger and it to go out again.