Mercedes B250E
WIP~
Mercedes B‐Class B250E “W246”~
Battery info~
The Mercedes B-Class B250E “W246” uses a 36 kWh lithium-ion battery manufactured by Tesla Motors. It shares many similarities with early Tesla batteries.
The battery is 84s, with an operating voltage range between ~250-350VDC.
Software configuration~
For this battery type, use the option called "Tesla Model S/X 2012-2020" under the "Battery Protocol" section.
Low Voltage wiring~
The battery is referred to as N82 in the wiring diagrams.
| Battery Connector | Connect to |
|---|---|
| Pin 20 CAN-H | Battery-Emulator CAN-H |
| Pin 31 CAN-L | Battery-Emulator CAN-L |
| Pin 21 CAN-H | x |
| Pin 32 CAN-L | x |
| Pin 4 Interlock | x |
| Pin 2 ?power? | x |
| Pin 11 ?? | x |
| Pin 15 ?power? | x |
| Pin 16 ?gnd? | x |
High voltage wiring 
~
Part numbers 
~
| Component | Part number |
|---|---|
| LV connector | 776164-5 |
| LV pins | 770520-1 |
Example integrations~
Example of this battery type used in a stationary storage install
CAUTION
Working with high voltage is dangerous. Always follow local laws and regulations regarding high voltage work. If you are unsure about the rules in your country, consult a licensed electrician for more information.