COBRA PRO 3000W Professional Grade Power Inverter User Guide

COBRA PRO 3000W Professional Grade Power

Connecting To A Vehicle Battery

1.  Mount the inverter inside the vehicle in a well-ventilated location close to the battery
2. For safety reasons install a properly rated fuse (not included) on the red cable as close to the positive (red) battery terminal as possible. Cut about 12 inches from ring terminal and install fuse. 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.  For items 5 and 6, you are installing (2) cables. (2) cables are needed for the PRO 3000 Watt Inverter
6. Install the insulated terminal boots on the inverter end of the power cables (RED = positive, BLACK = negative)
7. Connect each BLACK Cable to the NEGATIVE (-) terminal on the Inverter
8. Connect each RED Cable to the POSITIVE (+) terminal on the Inverter
9.  Connect the other end of the RED cable to the (+) terminal on the vehicle battery
10. 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
11.  Connect the other end of the BLACK cable to the (-) terminal on the vehicle battery. Caution: There is normally a spark at the point of contact at the negative terminal
12.  Check all connections making sure the RED cables are connected to the POSITIVE (+) terminals and the BLACK cables are connected to the NEGATIVE (-) terminals
13.  Go to the GETTING STARTED section to review the Battery Low Voltage Alarm setting based on the vehicle the inverter will be used with

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

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. If using a Cobra PRO Power Inverter with a car, van or RV, the Alternative Setting is recommended since batteries in these vehicles can afford a slightly deeper drain and will avoid an “early” Battery Low Voltage Alarm signal and 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.

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 the 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.

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.

PRO 3000W Features

1.  Negative Power Input Terminal
2. Cooling Fans – regulate the temperature of the inverter, turning it on when the temperature exceeds the preset limit and turning it off when the temperature reduces
3. Positive Power Input Terminal
4.  Green LED – Battery Voltage Indicator (V)
5.  Yellow LED – Output Power Indicator. When active, output power is in kilowatts (kW)
6. Red LED – Output Power Indicator. When active, output power is in Watts (W)
7.  (4) GFCI Protected AC Outlets
8. Digital Display showing Battery Voltage (V), Power in kilowatts (kW), Power in Watts (W), and Error Codes
9. USB-C Fast Charge port (5V/9V/15W)
10. USB-A Fast Charge port (5V/9V/15W)
11. Port for Cobra Remote On/Off Controller with Fast Charge USB
12. Power Button
13.  Power Cables
14. Inverter Terminal Protector Boots
15. Cobra Remote On/Off Controller with fast Charge USB

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