1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Enpower Electric Vehicle Controller. Please read this manual thoroughly before attempting any installation or operation to ensure proper function and to prevent damage to the controller or your vehicle. The Enpower controller is designed for specific electric vehicle models, including JINPENG V8, D70, and S70, and is available in 60V (MC3625-6027) and 72V (MC3625-7227) variants.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage:
- Ensure the vehicle's power is completely off and disconnected before installation or maintenance.
- Wear appropriate personal protective equipment (PPE), including insulated gloves and eye protection.
- Avoid contact with live electrical components. High voltages are present in electric vehicle systems.
- Do not attempt to open or modify the controller casing. This may void the warranty and pose a safety risk.
- Keep the controller away from water, excessive heat, and corrosive substances.
- If you are unsure about any step, consult a qualified technician.
3. Product Overview
The Enpower Electric Vehicle Controller is a critical component for managing power delivery to your EV's motor. It features robust construction and integrated wiring for ease of connection.

This image shows the Enpower MC3625-7227 controller, highlighting the main unit with its integrated wiring harness and power terminals. The label "Enpower Professional Quality Perfect Service MC3625-7227" is visible.

A top-down view of the MC3625-7227 controller, clearly showing the B+ (battery positive) terminal and the U, V, W phase terminals for motor connection. The text "72V3.5kwD70" is visible, indicating its voltage and power rating.

This image displays the Enpower MC3625-6027 controller, similar to the 72V model but designed for 60V systems. The label "Enpower Professional Quality Perfect Service MC3625-6027" is visible.
The controller unit typically includes a main housing, heat sink fins for thermal management, and various connectors for power input, motor phases, and control signals (e.g., throttle, brakes, ignition).
4. Specifications
| Feature | Specification |
|---|---|
| Brand | Enpower |
| Model Numbers | MC3625-7227, MC3625-6027 |
| Operating Voltage | 60V (MC3625-6027), 72V (MC3625-7227) |
| Nominal Power (MC3625-7227) | 3.5 kW (as indicated on unit) |
| Compatible Vehicles | JINPENG V8, D70, S70 (and other compatible models) |
| Item Weight | 4 kg |
| Origin | Mainland China |
5. Setup and Installation
Important: Before installation, it is crucial to verify that the controller model (MC3625-7227 or MC3625-6027) matches the voltage requirements and specifications of your electric vehicle. Refer to your vehicle's nameplate or existing controller's model number for compatibility. Incorrect installation can lead to severe damage to the controller, motor, or battery system.
Professional installation is highly recommended due to the complexity of electric vehicle electrical systems.
General Installation Steps:
- Preparation: Ensure the vehicle is powered off and the battery pack is safely disconnected. Secure the vehicle to prevent accidental movement.
- Mounting: Select a suitable mounting location for the new controller, typically where the old controller was located. Ensure good ventilation and secure the controller firmly using appropriate fasteners.
- Power Connections:
- Connect the main positive (+) cable from the battery pack to the B+ terminal on the controller.
- Connect the main negative (-) cable from the battery pack to the designated negative terminal (often chassis ground or a specific controller terminal).
- Ensure all power connections are tight and properly insulated.
- Motor Connections: Connect the three motor phase wires (U, V, W) from your electric motor to the corresponding U, V, W terminals on the controller. Verify correct phasing.
- Signal Connections: Connect the various signal wires from the vehicle's harness to the controller's integrated wiring harness. These typically include:
- Throttle input
- Brake switch inputs
- Ignition/Key switch input
- Speed sensor (if applicable)
- Reverse switch (if applicable)
- Initial Check: Double-check all connections for security, correct polarity, and insulation. Ensure no loose wires or potential short circuits.
- Power Up: Reconnect the battery pack. Turn on the vehicle's ignition. Observe for any unusual sounds, smells, or smoke. If any issues arise, immediately disconnect power.
- Testing: Carefully test the vehicle's functions, including throttle response, braking, and any other controlled features, in a safe and controlled environment.
6. Operating Instructions
Once correctly installed and tested, the Enpower controller operates automatically to manage your electric vehicle's motor. Key operational aspects include:
- Ignition: Turn the vehicle's key or power switch to the "ON" position to activate the controller and vehicle systems.
- Throttle Control: The controller translates your throttle input into motor speed and power. Apply throttle smoothly for optimal performance and battery life.
- Braking: The controller may incorporate regenerative braking or cut motor power during braking, depending on your vehicle's design.
- Overload Protection: The controller is designed with internal protection mechanisms against overcurrent, overvoltage, undervoltage, and overheating. If these conditions occur, the controller may temporarily shut down to prevent damage.
7. Maintenance
The Enpower Electric Vehicle Controller is designed for durability and requires minimal maintenance. However, periodic checks can help ensure its longevity and reliable performance:
- Visual Inspection: Regularly inspect the controller for any signs of physical damage, corrosion, or loose connections. Check the wiring harness for fraying or damage.
- Cleanliness: Keep the controller and its heat sink fins clean and free from dust, dirt, and debris to ensure efficient heat dissipation. Use a soft, dry cloth for cleaning. Do not use water or harsh chemicals.
- Connection Integrity: Periodically check all electrical connections to ensure they are tight and secure. Loose connections can cause overheating and intermittent operation.
- Environmental Protection: Ensure the controller remains protected from direct exposure to rain, snow, or extreme temperatures.
8. Troubleshooting
If you experience issues with your electric vehicle's performance, consider the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Vehicle does not power on / No response |
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| Motor not responding to throttle |
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| Reduced power or intermittent operation |
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User Tips:
- Always confirm the exact model number of your existing controller or vehicle nameplate before purchasing a replacement to ensure perfect compatibility.
- When replacing a controller, take photos of the original wiring setup before disconnecting anything to aid in reassembly.
9. Warranty and Support
For warranty information, technical support, or assistance with specific vehicle compatibility, please contact the seller or manufacturer directly. Provide your controller's model number and, if possible, your vehicle's nameplate details for faster service.





