Mobility scooter charging port cover

We have a Drive Scout mobility scooter that was missing the charging port cover.  The screw, spring and plastic pin were inside the case, fortunately it did not cause a short circuit.  There are 8 screws attaching the top of the battery case. 2 are under pressed in guide pins ( see the picture). The screw and spring worked well with the cover I designed.

I printed the cover using:
PLA+
100% infill (it's a small part)

This cover is probably the same on other charging ports.