Thread: Max Amps through 12S socket

I'm looking a making up a 12S socket charging lead for my Ctek charger, as I gather battery drain in the D4 can be more than what normal short drives will replenish.

Does anyone know the max amps that can be fed through the 12S socket using the trailer power pins? I'm also thinking of changing my camping 120W solar setup to charge the batteries through that, which in an ideal world, will produce 10A current.

Well, in anticipation of the new car (which should be off the production line in hopefully just over a week), I decided to make up a Ctek to 12S connector. Yes, I know I can buy one off DISCO4, but I also needed the make Ctek connector for another project, so decided to make my own.

Total cost was $30 including postage of parts from UK, but if you halved the cost for the extension cable, cost would be $20.

I was slow, took about 20 minutes, as I kept searching for and referring to wiring diagrams to make sure I don't wire things up incorrectly (and if anyone spots an error, please let me know). So in pictures...


The bits required, although the sealed connectors are for my solar charger project


Wiring up the 12S plug; Ctek red lead (assumed it's +ve) to pin 4, Ctek black (assumed it's -ve) to pin 3. For this plug, the pins were labelled on screw post side.


Putting things back together. The white plate is keyed, so you can't get it the wrong way around. Had to use some cable sheathing to ensure the cable holder held the cable firmly, as the cable is thinner than normal round cable.


Done!