I tend to forget the dang things, so no way did I want to hide or cover the chargers.
I put a switchable six port surge protector on angle brackets on my wall, near my bench.
I mounted my Craftsman charge horizontally on the wall, the other three chargers lay on top of the surge protector. You can see the Bosch in the picture, the others are small.
That way, it has multiple lights showing something is turned on, thus charging, and it is in line of sight as I switch off the lights to leave the shop.
I only sometimes leave them charging all night...
I also wanted them isolated, that is, somewhere I wouldn't pile something on top of an active charger, or otherwise hide it from myself.
They constitute a major fire hazard, especially in a building that might go visited for a few days.
You can see it in the picture, to the right of the TV/monitor, sticking out from the wall.