Nature Power 37300
Nature Power 300 Watt Power Inverter User Manual
Model: 37300
1. Product Overview
The Nature Power 300 Watt Power Inverter converts 12V DC power from your vehicle's battery into 120V AC household power. This device is designed to power various electronic devices and small appliances, making it suitable for use in cars, trucks, RVs, or during outdoor activities.

Image 1.1: The Nature Power 300 Watt Power Inverter shown with its included connecting cables. The inverter features two AC outlets and a USB port.

Image 1.2: Front view of the Nature Power 300 Watt Power Inverter, displaying the input and output specifications printed on the device, alongside the connecting cables.
2. Safety Information
Read all instructions and warnings before using this product. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Do not open the inverter casing. There are no user-serviceable parts inside.
- Keep the inverter away from moisture, water, and flammable materials.
- Ensure adequate ventilation around the inverter during operation to prevent overheating.
- Connect the inverter only to a 12V DC power source.
- Do not exceed the inverter's rated wattage (300 Watts).
- This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (Proposition 65 warning).
3. Package Contents
Verify that all components are present before proceeding with installation or operation.
- Nature Power 300 Watt Power Inverter
- Connecting Cables (Battery clamps and Cigarette lighter adapter)
4. Setup and Installation
Proper setup is crucial for safe and efficient operation of your power inverter.
4.1 Connecting to a 12V DC Power Source
The inverter can be connected to a 12V DC power source using either the included battery clamp cables or the cigarette lighter adapter.
4.1.1 Using Battery Clamp Cables (Recommended for full 300W output)
- Ensure the inverter's power switch is in the "OFF" position.
- Connect the red (positive) battery clamp cable to the positive (+) terminal on the inverter.
- Connect the black (negative) battery clamp cable to the negative (-) terminal on the inverter.
- Connect the red (positive) battery clamp to the positive (+) terminal of your 12V battery.
- Connect the black (negative) battery clamp to the negative (-) terminal of your 12V battery.
- Ensure all connections are secure and free from corrosion.
4.1.2 Using Cigarette Lighter Adapter (Limited to 150W-200W depending on vehicle fuse)
- Ensure the inverter's power switch is in the "OFF" position.
- Connect the cigarette lighter adapter cable to the DC input port on the inverter.
- Insert the cigarette lighter plug firmly into your vehicle's 12V accessory socket.
- Note: The maximum power output when using the cigarette lighter adapter is limited by the vehicle's fuse, typically 150-200 Watts.
5. Operating Instructions
Follow these steps to safely operate your Nature Power 300 Watt Power Inverter.
- After connecting the inverter to a 12V DC power source (as described in Section 4), ensure the inverter's power switch is still in the "OFF" position.
- Plug the AC appliance(s) you wish to power into the inverter's AC outlets. Ensure the total wattage of all connected appliances does not exceed 300 Watts.
- If charging USB devices, connect them to the USB port.
- Flip the inverter's power switch to the "ON" position. The power indicator light should illuminate.
- Your appliances should now receive power.
- To turn off the inverter, first turn off all connected appliances, then flip the inverter's power switch to the "OFF" position.
- Disconnect the inverter from the 12V DC power source when not in use.
5.1 Understanding Appliance Wattage
Before connecting any appliance, check its power consumption (wattage). This information is usually found on the appliance's label or in its user manual. The inverter can supply a continuous power of 300 Watts. Some appliances, especially those with motors (e.g., refrigerators, power tools), may have a higher "surge" wattage when they start up. Ensure the inverter can handle both the continuous and surge wattage of your devices.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter.
- Cleaning: Keep the inverter clean and free of dust and debris. Use a dry, soft cloth to wipe the exterior. Do not use liquid cleaners.
- Ventilation: Ensure the ventilation openings are not blocked. Blocked vents can lead to overheating and damage to the inverter.
- Connections: Periodically check all electrical connections (battery clamps, cables, and inverter terminals) for tightness and corrosion. Clean any corrosion with a wire brush if necessary.
- Storage: When not in use, store the inverter in a cool, dry place, away from direct sunlight and moisture.
7. Troubleshooting
This section provides solutions to common issues you might encounter with your power inverter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on / No power output |
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| Inverter shuts down frequently |
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| Fan running constantly or loudly |
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8. Specifications
| Feature | Detail |
|---|---|
| Model Name | 37300 |
| Continuous Power Output | 300 Watts |
| Input Voltage | 12V DC |
| Output Voltage | 120V AC |
| USB Output | 5V DC, 2.1A (typical) |
| Product Dimensions | 72 x 48 x 24 inches (Note: This dimension may refer to packaging/shipping size. Refer to actual product for physical dimensions.) |
| Item Weight | 2 pounds |
| Power Source | Solar Powered (Note: This refers to the potential use case with solar panels; the inverter itself is powered by a 12V DC battery.) |
9. Warranty and Support
For warranty information or technical support, please contact Nature Power customer service. Specific warranty terms and conditions may vary and are typically provided with the product packaging or on the manufacturer's official website.
Manufacturer: RDK
Date First Available: May 29, 2020
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