After modifying the power rails of the FIRST circuits in order to be able to use them without batteries. The addition of a socket to power the rail with a 6V power supply unit allows you to play without worrying about batteries. You no longer run out of batteries in the middle of a race. If for the FIRST circuits, we understand the usefulness, but why do such a thing on a GO Battery circuit?
The GO Battery circuits have a socket to connect a Carrera GO power supply to do without batteries. In the article dedicated to the GO Battery, we saw that there is a speed difference of about 30% between battery power and mains power. Having cars a little less fast can be useful for the youngest in order to avoid too many road exits. So the idea is to stay in “battery mode” but with mains power. So the goal is to replace the battery power supply with a 6V mains power supply.
To start, you have to open the power rail.
ATTENTION : If you open the rail, you lose the warranty. In addition, any incorrect handling can have serious consequences on the electronics and the use of the circuit can be dangerous.
Remove the 6 screws, be careful, one of them is under the warranty warning sticker. The cover comes off and you discover the electronic card.
I chose to place the connector on the side where there are the fewest wires to have space. It will then be possible to pass the cable to the battery connectors. You have to calculate carefully before drilling to take into account the nut that fixes the plug. And the cover must find its position. Below is the drilling carried out.
You have to solder the cable to the tip, pay attention to the polarities, the plus is in the middle in my case. It is easier to solder the wires and then put the plug in place. Be careful to check the location of the plus on your power supply.
The other side of the cables must then be soldered to the battery side wires.
The wires are welded, then the cable must be positioned correctly to close the cover. In the partitions, there are small passages to leave the cable without passing it.
The lid has long edges. The connector is preventing the lid from closing. On the right in the photo, the cable is running along the edge and is preventing the lid from closing.
To correct these problems, you will need to cut the edges of the lid in both places. On the bottom right and left of the photo below
You can close the lid and test your modification.
Attention : never connect your power supply at the same time as batteries. No protection device has been put in place in our example.
Connect the starting rail to your track, plug your 6Volt power supply into the added socket. And normally the cars roll.