Here we have a wall mount for the Shimano EC-E6002 e bike charger. The charger pushes back flush on the friction fit pins and is very secure, there is no obstructions for ventilation etc like you get with a caddy style mont.
Shimano STEPS BT-E8016 STEPS battery 630 Wh, frame down tube mount, black
Shimano STEPS Steps DC-EP800-G Drive Unit Cover Bottom Cover Black OEM
Shimano STEPS EC-E6002 STEPS battery charger, without SMBCC16 power cable
SHIMANO STEPS BM-E8010 Steps battery mount for BT-E8010, cable 300 mm, IBME80102