Description
The Speedhut 3-3/8″ AEM Car/EV Battery Dual Gauge (FAE3-DG2-EV) offers a convenient and accurate solution for monitoring the voltage levels of both your vehicle’s standard battery and its high-voltage electric vehicle battery system. This dual-function gauge provides real-time feedback, allowing you to stay informed about the health and status of your power sources. Its integration with the vehicle’s CAN-Bus network ensures precise readings, while built-in warning lights offer an extra layer of security.
KEY FEATURES AND BENEFITS:
- Dual Voltage Monitoring: Displays both the car battery voltage (6-18V) and the EV battery voltage (200-400V) in a single, space-saving 3-3/8″ unit.
- CAN-Bus Integration: Communicates via CAN-Bus at a 500K baud rate for accurate and reliable data acquisition from the vehicle’s systems.
- Integrated Warning Lights: Equipped with warning indicators to alert the driver of critical low voltage levels for both battery systems.
- Precise Readings: Utilizes an internal microprocessor for accurate voltage measurements.
- Smooth Operation: Features a high-torque stepper motor for precise and responsive pointer movement.
- Robust Design: Constructed with a slim, weather-resistant case and a solid aluminum bezel for lasting performance.
- Easy Installation: Designed for straightforward mounting with a spin-lock ring in a standard 3.33-inch (85mm) opening.
- Quality Assurance: Proudly made in the USA and backed by a strong warranty.
SPECIFICATIONS:
- Gauge Size: 3-3/8 inch (85mm)
- Mounting Hole: 3.33 inch (85mm)
- Car Battery Voltage Range: 6-18V
- EV Battery Voltage Range: 200-400V
- Communication Protocol: CAN-Bus (500K baud rate)
- Included: Likely includes wiring harnesses (similar to models A-323, A-335, A-336)
HOW TO USE:
- Mount the Gauge: Locate a suitable 3-3/8″ (85mm) opening on your dashboard. Insert the gauge and secure it using the spin-lock ring from the back.
- Connect the Wiring: Connect the provided wiring harnesses to the appropriate power sources, ground, and the vehicle’s CAN-Bus system. Refer to the specific wiring diagram included with the product.
- CAN-Bus Connection: Ensure the CAN-Bus wires are correctly connected to the vehicle’s CAN-Bus network (500K baud rate).
- Power On: Once all connections are secure, turn on your vehicle’s ignition.
- Observe Readings: The gauge will begin displaying the real-time voltage readings for both the car battery and the EV battery.
- Monitor Warning Lights: Pay attention to the integrated warning lights, which will illuminate if either battery voltage drops to a critical level.
BENEFITS OF USING THE SPEEDHUT 3-3/8″ AEM CAR/EV BATTERY DUAL GAUGE (FAE3-DG2-EV):
- Provides a clear and immediate understanding of the voltage status of both critical battery systems in your vehicle.
- Helps in early detection of potential battery issues, preventing unexpected breakdowns or performance problems.
- Saves valuable dashboard space by combining two essential readings into a single, attractive gauge.
- Offers accurate and reliable data through its CAN-Bus integration and internal microprocessor.
- Increases driver awareness and confidence by providing constant feedback on vital electrical system parameters.
- The robust construction ensures long-lasting performance in various driving conditions.
FEATURES:
- Simultaneous display of auxiliary (6-18V) and high-voltage (200-400V) battery levels.
- Seamless data acquisition via the vehicle’s Controller Area Network.
- Visual alerts for critically low voltage conditions on either battery.
- Internal processing for precise and stable voltage readings.
- Responsive needle movement powered by a high-performance motor.
- Durable outer casing designed to withstand automotive environments.
- Secure and straightforward mounting mechanism.
- Manufactured with high-quality components in the USA.





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