Press the tip against the power inductor's second solder pad and the power inductor's second end cap for a few seconds to heat them both. Angle the tip so it has maximum contact with the pad and cap.

Feed the solder wire into the heated area until there's a small glob of solder joining the second end cap to its pad.

The power inductor's contact pads are underneath it, so the solder joint doesn't need to cover the entire end.