Cobra PRO 3000W Power Inverter

Getting Started

1. Connect the Remote On/Off Controller with Fast Charge USB (Optional).
2. Press the POWER button to turn on your inverter (or the POWER button on the remote controller).
3. When the inverter is powered on, the Input Voltage LED is green.

Connecting To A Vehicle Battery

Important: Ensure cables are not incorrectly connected. Connect the RED cables to the POSITIVE (+) terminals and the BLACK cables to the NEGATIVE (-) terminals.

Steps:

1. Mount the inverter inside the vehicle in a well-ventilated location close to the battery.
2. For safety, install a properly rated fuse (not included) on the red cable as close to the positive (red) battery terminal as possible. Use 2 x 150 Amp fuses for the 3000W inverter.
3. Disconnect the NEGATIVE (-) or black battery terminal of the vehicle.
4. Route cables close to the battery.
5. Install the insulated terminal boots on the inverter end of the power cables (RED = positive, BLACK = negative).
6. Connect each BLACK Cable to the NEGATIVE (-) terminal on the Inverter.
7. Connect each RED Cable to the POSITIVE (+) terminal on the Inverter.
8. Connect the other end of the RED cable to the (+) terminal on the vehicle battery.
9. Visually inspect and make sure the red wire or its connectors are not touching any metal parts of the vehicle or the black wire connectors.
10. Connect the other end of the BLACK cable to the (-) terminal on the vehicle battery. Note: There is normally a spark at the point of contact at the negative terminal.
11. Check all connections, making sure the RED cables are connected to the POSITIVE (+) terminals and the BLACK cables are connected to the NEGATIVE (-) terminals.
12. Refer to the "Setting Up Your Inverter" section to review the Battery Low Voltage Alarm setting based on the vehicle the inverter will be used with.

Setting Up Your Inverter

Cobra Pro Power Inverters are equipped with (2) settings to accommodate battery run times for both large and small vehicles.

Default Setting (11.5 Volt): From the factory, the PRO Power Inverter is set to an 11.5 Volt default Battery Low Voltage Alarm and will automatically shut down at 10.5 Volts to protect the battery from deep discharge (so you can start your vehicle). This setting is ideal for Professional Trucks.

Alternate Setting (10.5 Volt): If using a Cobra PRO Power Inverter with a car, van, or RV, the Alternate Setting is recommended. Batteries in these vehicles can afford a slightly deeper drain, avoiding an "early" Battery Low Voltage Alarm signal and providing longer run time.

CAUTION: The Default Low Voltage Alarm Setting is designed for Professional Trucks and larger vehicle batteries. If using this setting with a standard vehicle, van, or RV, the alarm will sound earlier than necessary and reduce battery run time.

CAUTION: Your power inverter will automatically shut off at 9.5 Volts when set to the Alternate Battery Low Voltage Alarm Setting. Do not set the Battery Low Voltage Alarm Setting to the Alternate Setting when using your inverter with a Professional Truck or larger vehicle.

Instructions For Changing Low Voltage Alarm Setting to 10.5 Volts

1. Connect the Remote On/Off Controller with Fast Charge USB (Optional).
2. Press the POWER button to turn on your inverter (or the POWER button on the remote controller).
3. Press and hold the POWER button for 5 seconds or until the Input Voltage LED turns blue.
4. Once blue, the Battery Low Voltage Alarm will be set to sound when your battery Voltage reaches 10.5 Volts. The power inverter will automatically shut down when battery voltage reaches 9.5 Volts to protect the battery from deep discharge (so you can start your vehicle). The setting will not change when the inverter is turned off or the battery is disconnected. To set the inverter back to the Battery Low Voltage Alarm Default Setting at 11.5 Volts, follow steps 1 and 2.

PRO 3000W Features

• A. Negative Power Input Terminal
• B. Cooling Fans: Regulate the temperature of the inverter, turning on when temperature exceeds the preset limit, and turning off when the temperature reduces.
• C. Positive Power Input Terminal
• D. Green LED: Battery Voltage Indicator (V)
• E. Yellow LED: Output Power Indicator. When active, output power is in kilowatts (kW).
• F. Red LED: Output Power Indicator. When active, output power is in Watts (W).
• G. (4) GFCI Protected AC Outlets
• H. Digital Display: Shows Battery Voltage (V), Power in kilowatts (kW), Power in Watts (W) and Error Codes.
• I. USB-C Fast Charge port: (5V/9V/15W)
• J. USB-A Fast Charge port: (5V/9V/15W)
• K. Port for Cobra Remote On/Off Controller with Fast Charge USB
• L. Power Button
• M. Power Cables
• N. Inverter Terminal Protector Boots
• O. Cobra Remote On/Off Controller with Fast Charge USB