Battery: Ampera‐e 64 kWh - dalathegreat/Battery-Emulator GitHub Wiki

[!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.

GM BEV2 platform

The 60-66kWh battery in the GM BEV2 platform can be found in the following vehicles

Opel Ampera-E (2017-2021)
Chevrolet Bolt (2016-2023)

2020+ models are 64 KWh, earlier are 57 kWh

Software configuration

For this battery type, use the option called "Chevrolet Bolt EV/Opel Ampera-E" under the "Battery Protocol" setting

Also remember to configure the allowed charging power, since we do not read this value via CAN.

The battery uses 12V controlled contactors, so use Contactor Control via GPIO if you want Battery-Emulator to also control the contactors via GPIO

One user reported using 3x this type of relay with the LilyGo hardware https://nl.aliexpress.com/item/1005005622431177.html?spm=a2g0o.order_list.order_list_main.126.d91579d2FEesY4&gatewayAdapt=glo2nld

Wiring diagrams

Connect the low voltage wiring like this:

X358 connector (black)

Pin 1 & 2 should be grounded (if pin 1 has 5V we lock the battery?)
Pin 3 12v+ positive contactor
Pin 4 12v+ negative contactor
Pin 5 12v+ positive contactor for aux connector
Pin 7 12v+ precharge
Pin 8 is coolant temp, pin 9 is ref. to pin 8.
Pin 10 to ground

X357 connector (gray)

Pin 1 fused with 10A (+12V)
Pin 2 we wake up the sensors (+12V)
Pin 3 & 4 relevant CAN H/L (?)
Pin 5 & 6 relevant CAN H/L (?)
Pin 7 & 8 relevant CAN H/L (?)
Pin 9 is blocking ignition if we feed 5V
Pin 10 wake up BMS (+12V)
Pin 11 wake up communication (+12V)
Pin 12 to ground

All three CAN's should be connected to BE device.

The following diagrams will help you to connect to the CAN buses on the Opel/Chevy batteries:

[!NOTE] These batteries have multiple CAN buses that needs to be jumpered together to form one large CAN bus the resistor on the Lilygo must be removed Example, development environment with contactor control via GPIO, and all 3x CAN buses connected together as one single bus

AC laden DC laden temperatuur regeling accu verwarming

aansluitingen hoogspannings kabels activeren seriele gegevens activeren seriele gegevens canbus blokkeerlus bus hoogspanning beheer canbus in schakelen contactors hoogsanning regeling contactors hoogspanning regeling contactors negatief contactors positief Hi speed 1 Hi speed 2 voeding en massa HV accu 2 Stekker X 357 OEM 33472-1259 Service Connector 19333239