LEGO PART 58118 Wire with Brick 2 x 2 x 2/3 with 1 x 2 Studs and Power Functions and 9V Connectors, 50cm, One Light Bluish Gray End | Rebrickable - Build with LEGO
LEGO 10078 Train Connection Wire | BrickEconomy
1x Black Lego 9v Wire, 20 Studs Long for Mindstorms RCX Trains - 5306bc020 | eBay
Lego 9v Trains: Simple Repair Tutorial for 9v Track Wire Clip part AKA the "Achilles Heel" Hope this helps all Lego fans. : r/lego
Repairing Lego 9v Train Wires - YouTube
Lego Recharger - Make:
LEGO® Power Functions Extension Wire 8886 | Other | Buy online at the Official LEGO® Shop US
How to Hack a LEGO Power Functions Cable for Direct 9V Power - GeekDad