I sent my laptop to get the charging pin replaced about a month ago. They did a fine job, but sent me a replacement charging cable/brick since the connector on my old one was a bit worn down.
The replacement didn't exactly exude confidence in build quality
It was working fine for a month, but just now I saw a spark in the middle of the cable which then caught into a small flame and burned a hole through the rubber covering. Fortunately it went out by itself and my computer wasn't damaged.
If I had my camera I'd post pictures of the cable; it's not a pretty sight.