The booster pack in my van wasn’t charging while driving. Moving the plug around helped sometimes depending on which way I pushed it, so it needed fixing. Also the barrel connectors I have on hand do not fit in the dc plug of the booster pack, so the one that it came with needed to be fixed.
When I started investigating the connector, the barrel connector came out of the boot.
So I cleaned up the ends and reconnected them.
and the other.
and finally, protection from the world.
All good to go for the next while, I’m glad it was easy to fix.