Have no clue how, but somehow my charging cable for the gamepad split open a little just above the connector. I've pretty much always just had it plugged into the gamepad (from the top port, can't plug it into the dock itself because of the way my shelf is designed) for the past 8 years since I got it, so I assume maybe the age finally got to it. I last used the gamepad about 3-4 months ago and it was fine then, and it's just been sitting there untouched since so I assume it just randomly happened at some point in the past few months. And no, I have no animals that could chew through the cable.
It still charges perfectly fine and none of the wires inside seem damaged or sticking out, so I taped it up with some electrical tape. Hopefully that's safe...? Never actually had this happen to a cable before. The rest of the cable seems fine, it's just a tiny half inch section at most that was cracked open.
I was wondering if there's any decent third party chargers in case this one ever does die completely. I've been looking on Amazon and eBay and noticed a few USB charging cables for the gamepad. Anyone have any experience with these?