Get The Hell Out Of My Wall-Box… or How To Make Cheap Type-2 Adapter Cables Not So Sticky…

Get The Hell Out Of My Wall-Box… or How To Make Cheap Type-2 Adapter Cables Not So Sticky…

A few days ago, I received an IEC 62196 to Schuko (German Plug) adapter, to be able to draw 230V from a wall-box or public charger.

I’ll replace the Schuko by a CEE type blue connector, as it is usually used in camping equipment. This is just a present for one of my friends Tarek, some maybe even know already from Instagram or Youtube.

I already had the feeling, that the plug will be a bit sticky for my wall-box. Not due to mechanical tolerances but due to the vehicle detection that makes the wall-box to lock the cable as long as a car ist connected. Some wall-boxes have a release function, as also the go-echarger CM-03 has. Unfortunately, I have a CM-02 🙁

So I plugged the cable in, still hoping to be able to release it by software as a last resort. Hmmm… fail! I need to disassemble the charger.

I need to loosen one of the screws of the lock mechanism, to be able to bend it away just enough to release the plug.

And for you, not to also need to disassemble your wall-box, here is, how the cable can be disasembled still connected to the box.

  1. First loosen the cable gasket and the strain relief

2. Take out the tiny screw on the downside of the handle

Also look out, if there is another screw on the upper side, maybe covered by a sticker (reported by a friend of mine, that also had the same problem and broke out the second screw)

3. Pull the handle upwards and shake while adding force (see video), so that the handle slips over the red fiction rubber. It should then easily slip over the two tabs at the upper side of the connector.

The parts you can see (from right to left): 1N4007 (Standard Diode), 680 Ohms and 2 x 100 Ohms. In total this signals a vehicle ready for charging.

For detailed information about the IEC 62196 signaling, take a look at evalbo.

To ensure, that the cable is OK, I also took my Benning IT 115 installation tester and did an impedance measument on the cheap adapter cable (and all the cabling to my wall-box included).

This looks really nice. Only 80A are required in my case, but 376A would be possible.

I can do some reverse engineering on the organs of the go-echarger, if there is enough interest from the community.

Now, have fun to add the switch and charge whatever you want or just plug a BBQ to a WallBox 🙂

themole

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