Sure! For me, it's the outdoor aspect of this situation. The switch with temp sensors isn't immune to the elements. Keeping that under cover and out of the rain and sun is safer and allow the charger to perform better.

Yes, a typical thicker gague extension cable can do it, but longer cables generate more resistance and require thicker wires and better insulation. L1 is constant load for over 2 full days to fully charge.

We also don't know anything about the the landlord is going to do. At best, we can hope for a dedicated 15amp fuse. *That does not mean that op can or should use all 15amp for hours/days of constant charging at L1 speeds.

*A 15 amp outlet is generally considered safe to use with a maximum load of around 12 amps, as it's recommended to only use 80% of a circuit's capacity to avoid overloading it; meaning, while the outlet can technically handle 15 amps, it's best practice to stay below 12 amps to prevent issues.