BMS-EV Controller – MG MG4 EH32 (51/64/77 kWh) + SMA Sunny Boy Smart Energy 3.6 / 4.0 / 5.0 / 6.0-50 Hybrid Inverter

Description

BMS-EV Controller for battery MG MG4 EH32 (51/64/77 kWh) with inverter SMA Sunny Boy Smart Energy 3.6 / 4.0 / 5.0 / 6.0-50 Hybrid Inverter

Convert your battery MG MG4 EH32 (51/64/77 kWh) into an efficient home energy storage system. The BMS-EV Controller provides full integration with the inverter SMA Sunny Boy Smart Energy 3.6 / 4.0 / 5.0 / 6.0-50 Hybrid Inverter, enabling safe and efficient use of the traction battery for solar energy storage.

Battery specification MG MG4 EH32 (51/64/77 kWh)

Battery from MG4 EH32.

Key features

• Native CAN communication – Direct integration with original BMS MG
• Dual battery support – Ability to connect 2 identical batteries simultaneously to increase capacity
• Real-time monitoring – Cell-level voltage and temperature tracking
• Wi-Fi connectivity – Web interface, MQTT and Home Assistant integration
• Safety systems – Multi-layer protection with automatic error handling

Smart integration

• Web server – Configuration and monitoring via browser
• MQTT – Integration with home automation and smart home systems
• Home Assistant – Auto-discovery, easy configuration
• Remote control – Pause, resume and charge control via internet

7″ Monitor and BMS-EV Cloud Service

You can add to your BMS-EV controller wireless 7″ monitor with touchscreen that displays in real-time:

• Battery state of charge (SOC) and state of health (SOH)
• Individual cell voltages and temperatures
• Charge/discharge power and energy flows
• Historical charts and statistics

BMS-EV Cloud service provides remote access to your system from anywhere in the world:

• Remote monitoring – Check system status via browser or mobile app
• Push notifications – Instant alerts for critical events
• Data history – Cloud storage and analysis of historical data

Safety features

• Automatic charge/discharge blocking in critical conditions
• Battery state of health (SoH) monitoring
• Communication loss alarm
• Cell voltage difference control
• Automatic shutdown on failure

Technical specification