Ok, I am having a bit of confusion based on my limited understanding of electrical concepts and what I am see in some of the many photos I have looked at of these little creations we seem to have a fascination with.
I assume that all users of 12V systems should have a master switch that turns everything on/off. I am also assuming that for ease of installation it should be near the battery.
Next, as a result of discussion in another post, I think that charging stations using USB should be switched as they will still draw some current when not being used. It is in their design. The old traditional 12V cigarette lighter style charger only draws power when being used so it should not need to be switched.
Internal lights can be purchased with inbuilt switches - so you would think no need for any further switches.
So why when I look at photos do I see switched lights with what appear to be external switches. Charging stations (Non-USB) using switches. And why do I see fantastic fans with power switches next to them.
Am I missing something or are these people just being very careful in what they are doing or future proofing their builds in case they want to put unstitched alternatives in.