I don't have enough 12V outlets in my camper and I'm getting really tired of the huge cigarette lighter form factor for 12V power. I'm thinking about creating 5.5 X 2.1mm female power outlets in my...
The only thing about those is after a bunch of repeated use, they tend to fit sloppily into their respective counter part. I have a couple I use in the garage and I have to jiggle them every time to make a connection.