[Solved / Archived] Witty Pi 4 DC/DC Converter Failure

I just got a Witty Pi 4 to power a Pi installed in a vehicle. I wired it up to the vehicle power (~ 12.8V to 14V depending on running).

It worked great for a few days and then failed. It looks like the MP4462 is kind of cooked. I can still power the witty from the USB connection but the XH2.54 is dead.

My understanding is the Witty Pi 4 should handle up to 30V on the XH2.54? Am I doing something incorrect or is this just random hardware failure?

Thanks!