Anderson plugs are great design and they even come in different sizes. I have one hidden under my cooling cowl flap and another attached to my old jump starter pack (which now has a four LiFePO4 cells in it).
When my battery has let me down, I’ve sat the starter pack on the ground and attached the Anderson plug. After starting, it’s just within reach to disconnect and drop the cable onto the ground as I taxi away.
A recent incident has diminished my trust of LiFePO4 batteries; they won’t explode or burn, but can overheat and swell enough to be a hazard. I’m relocating mine, similar what I’ve done with my camper trailer battery, which is now mounted under the back in an automatic ejector; if it overheats, three poly straps quickly melt, allowing gravity to swing its cradle down, where a pair of slides let it drop onto the road, away from the camper.
If I do something similar for my aircraft, it won’t land on someone’s head- will still be attached by a thin steel cable, but well below my plane.