Used EVs are remarkably cheap. The problem is that it still effectively requires you to be able to charge at home, which is not common on cheaper housing.

Digging up the manual and promotional material showed a few things. They regularly refer to it as USB-C by name, and the manual lists the models as OBELIEVE OBL-0901500E / OBL-0901500B. I can’t find much on these, but they are manufactured by DongGuan, suggesting an off-the-shelf part.

IOW, the damage is unlikely to be from plugging in a standards-compliant USB-C PD adapter.

What’s the model of radio, and if you have it, the official charger?