The orange wire needs to connect the the - of “b.Battery”, too. Push the thin blue and thin orange wire through the carrier. This is a good time to push the temperature sensor on the green wires into the carrier.

Trim and tin both the orange and blue wires Put a 2cm length of heat shrink over each of the orange and blue wires. Cut the - lead of the “b. Battery” leaving about 3cm

Strip 2cm of the lead and tin. Wrap the tinned lead 360° around the fuse lead, leaving a bit for the orange wire. Crimp the fuse lead Create a U on the “bit” of lead. Create a U on the orange wire Loop the U’s together, crimp with needle nose pliers and solder both joints, remembering not to dwell on the fuse lead 038