a very small suggestion

i observed the charging station has 3 lights that all light up and change from red to green as the item is charged, but i thought it was kind of redundant (not because of design but functionality), so i had the idea of separating them like so:

1st: turns green when connected to wires and receiving energy
2nd: turns red when there's an item charging and only turns green when fully charged (maybe emitting a redstone signal)
3rd: behaves normally like the ones now

No, the lights are fine as is. Plus, we can't easily detect "connected to wires and receiving energy", because as soon as the buffer is full, it's no longer receiving energy.