Bosch eBike Charging Station with Sonoff Switch
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I remixed @Felix's model for the Bosch Standard Charger (4A) to accept a Sonoff S31 energy monitoring relay.
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Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Outdoor Sports
- Licencja
- Creative Commons — Attribution — Noncommercial
Built on @felix's model to simplify usage and enable me to create some automations.
I used a Sonoff S31 which enables me to monitor energy consumption and remotely turn the power on/off. I use ESPHome (on the S31) and HomeAssistant to track power consumption, and automatically shut off the power to the charger when it completes charging. I also use that to trigger a notification to my phone to unplug the bike.
I also simplified the wiring - uses everything “off the shelf” no creating your own outlet/cable.
Materials
3D printed parts:
- Remixed:
- Main compartment
- Lid
- Original model:
- Plug holder
- Plug holder lock
Components:
- Bosch eBike charger (assume you have that already :) )
- SONOFF S31 WiFi Smart Plug with Energy Monitoring (amazon)
- Short right angle IEC320 C7 power cable (I used a 3ft model I had lying around) (amazon)
- 3 Prong Extension Cord - just about any should do (amazon)
- Wall screws with anchors as needed

Assembly / Installation
- Print the main body
- Remove any supports
- Insert the plug holder from the side, lock in place with “lock”
- Slide the Sonoff S31 from the inside of the case
- Toggle button should be facing outward
- Metal prongs face down to bottom of case
- Thread the extension cable in from the “back” of the case
- Connect S31 to extension cable
- Slide in Bosch charger from the top - should hold everything together nicely
- Connect charger to S31 via the C7 power cable
- Add top cover and snap in place





