1. Product Overview
The Grizzl-E Duo is a Level 2 Electric Vehicle Supply Equipment (EVSE) designed to charge two electric vehicles simultaneously. It features a robust construction suitable for both indoor and outdoor use, providing reliable and efficient charging for compatible EVs and Plug-in Hybrid Electric Vehicles (PHEVs).

Figure 1: Grizzl-E Duo EV Charger, showing the main unit, NEMA 14-50 plug, and two J1772 charging connectors.
Key features include:
- Dual-port charging capability with two 24-foot J1772 premium charging cables.
- UL Certified for safety and reliability.
- Heavy-duty NEMA-4 rated metal enclosure for indoor/outdoor use, resistant to water and fire.
- Adjustable amperage settings: 40A, 32A, 24A, 16A.
- Intelligent power-sharing to optimize current distribution between two vehicles.
- Comprehensive safety protections: Over Current, Over Voltage, Under Voltage, Missing Diode, Ground Fault, and Over Temperature.
- Error monitoring for both charging ports.

Figure 2: High-speed EV charging capabilities of the Grizzl-E Duo, highlighting 240V fast charging, up to 40 Amps, and simultaneous charging for two vehicles.
2. Setup and Installation
The Grizzl-E Duo is designed for straightforward installation. It requires a NEMA 14-50R outlet for power connection. Professional installation by a qualified electrician is recommended to ensure compliance with local electrical codes and safety standards.
2.1 Package Contents
Before beginning installation, verify that all components are present in the package:

Figure 3: Detailed view of the Grizzl-E Duo package contents, including the main unit, mounting screws, cable holders, and two 24-foot output cables.
2.2 Mounting the Charger
- Select a suitable indoor or outdoor location near a NEMA 14-50R outlet, ensuring adequate space for cable management.
- Use the provided mounting bracket and hardware to securely attach the charger to a wall stud or other sturdy surface.
- Ensure the charger is mounted at a height that allows comfortable access to the charging cables and unit.
2.3 Electrical Connection
The Grizzl-E Duo connects directly to a NEMA 14-50R receptacle. Ensure the circuit is properly rated for the charger's maximum amperage (40A) and that the outlet is installed correctly by a certified electrician.

Figure 4: Safety and durability features of the Grizzl-E Duo, including UL certification, NEMA 4 enclosure, and various electrical protections.
3. Operating Instructions
The Grizzl-E Duo is designed for simple operation. Follow these steps to charge your electric vehicles:
- Connect to Power: Ensure the Grizzl-E Duo is securely plugged into a NEMA 14-50R outlet. The status indicator light on the unit will illuminate.
- Connect to Vehicle: Take one of the J1772 charging cables and insert the connector firmly into your electric vehicle's charging port. Repeat for the second vehicle if charging two simultaneously.
- Charging Process: The charger will automatically initiate the charging process. The status indicator light will change to indicate active charging.
- Adjusting Amperage: The Grizzl-E Duo allows for adjustable amperage settings (40A, 32A, 24A, 16A). Refer to the specific instructions provided with your unit for how to change these settings, typically via a dip switch or internal configuration.
- Intelligent Power-Sharing: When two vehicles are connected, the charger intelligently distributes the available current to maximize charging efficiency for both. If only one vehicle is connected, it will receive up to 10kW of power.
- Disconnecting: To stop charging, first disconnect the J1772 connector from your vehicle. The charger will cease power delivery.
The Grizzl-E Duo is compatible with all Electric Vehicles (EVs) and Plug-in Hybrid Electric Vehicles (PHEVs) sold in North America that use the J1772 charging standard.

Figure 5: Compatibility of the Grizzl-E Duo with a wide range of electric and plug-in hybrid vehicles.
4. Maintenance
The Grizzl-E Duo is designed for durability and requires minimal maintenance. Its NEMA 4 enclosure provides excellent protection against environmental elements.
- Cleaning: Periodically wipe the exterior of the charger and cables with a damp cloth to remove dust and dirt. Do not use harsh chemicals or abrasive cleaners.
- Cable Inspection: Regularly inspect the charging cables and connectors for any signs of wear, damage, or fraying. If any damage is observed, discontinue use and contact customer support.
- Environmental Protection: While designed for outdoor use, ensure the unit is not submerged in water and that its ventilation points remain clear of debris.
5. Troubleshooting
The Grizzl-E Duo includes internal error monitoring to help identify and address potential issues. If you encounter a problem, consider the following:
- No Power:
- Check if the NEMA 14-50R outlet has power. Test with another appliance if possible.
- Ensure the charger's plug is fully inserted into the outlet.
- Check your home's circuit breaker panel for tripped breakers.
- Charging Not Initiating:
- Ensure the J1772 connector is fully and securely inserted into the vehicle's charging port.
- Verify that your vehicle's charging settings are configured correctly (e.g., not set to a delayed charge).
- Check the charger's status indicator light for any error codes or patterns. Refer to the full product manual for specific light indications.
- Reduced Charging Speed:
- If two vehicles are charging, the power is shared. This is normal operation.
- Verify the amperage setting on the charger.
- Ensure your vehicle is capable of accepting the full charging rate.
- Error Indicator Light: If an error light is illuminated, disconnect the charger from both the vehicle and the power outlet for a few minutes, then reconnect. If the error persists, contact Grizzl-E customer support with details of the error indication.
For more detailed troubleshooting steps or issues not covered here, please refer to the comprehensive online manual or contact Grizzl-E customer support.
6. Specifications
| Attribute | Value |
|---|---|
| Brand | Grizzl-E |
| Model Number | GCD-14-24-P |
| Manufacturer | United Chargers |
| Item Weight | 29.3 pounds |
| Product Dimensions (L x W x H) | 14 x 16 x 16 inches |
| Wattage | 10000 watts |
| Input Voltage | 240 Volts |
| Output Voltage | 240 Volts (AC) |
| Plug Format | NEMA 14-50 |
| Cable Length | Two 24-foot (7.3m) J1772 cables |
| Enclosure Rating | NEMA 4, IP67 Water-resistant, Fire resistant |
| Certifications | UL Certified |
7. Warranty and Support
The Grizzl-E Duo EV Charger comes with a comprehensive warranty and dedicated customer support.
- Warranty: A 3-year technical warranty is provided, covering defects in materials and workmanship under normal use.
- Customer Support: Grizzl-E is committed to providing "Unprecedented Support" and "Life Time Support" for its products. For technical assistance, troubleshooting, or warranty claims, please visit the official Grizzl-E website or contact their customer service department.
For more information and to access additional resources, please visit the official Grizzl-E Store on Amazon.





