Connecting two Honda generators to a travel trailer allows you to increase your available power output for running appliances and air conditioning. To connect two Honda generators to a travel trailer, you’ll need to use a parallel kit to link the generators together, then connect the combined output to your RV’s power inlet using the appropriate adapter cord. This setup provides more power than a single generator while maintaining portability.
Choosing Compatible Honda Generators
To connect two Honda generators to your travel trailer, you need to select compatible models that can be paralleled together. Honda EU series inverter generators like the EU2200i and EU3000i are designed for parallel operation. Here are the key points for choosing compatible generators:
- Select two identical Honda inverter generator models for optimal performance
- EU2200i, EU2000i, EU3000i, and EU7000is models can be paralleled
- Generators must have parallel capability ports on the control panel
- Wattage ratings should match (e.g. two 2200 watt units)
- Avoid mixing different wattage models unless specifically approved by Honda
The most common setup is using two Honda EU2200i generators, which provides up to 4400 watts of power when connected in parallel. This is typically sufficient to run an RV air conditioner along with other appliances. Always check your specific travel trailer’s power requirements before selecting generators.
Required Equipment for Connecting Generators
To connect two Honda generators to your travel trailer, you’ll need the following equipment:
- Two compatible Honda generators
- Honda parallel operation cable kit
- 30-amp to 50-amp adapter (if RV has 50-amp service)
- 30-amp RV power cord
- Generator-to-RV adapter cord (if needed)
The parallel operation cable kit is essential, as it allows the two generators to be linked together safely. Honda sells official parallel kits designed for their generators. Third-party kits are available but may void the warranty, so stick with Honda accessories when possible.
Make sure you have the correct adapter to match your RV’s power inlet – most travel trailers use a 30-amp connection, but some larger units require 50-amp service. Having the proper cords and adapters on hand will ensure you can connect everything securely.
Steps to Connect Generators in Parallel
Follow these steps to connect two Honda generators in parallel:
- Place generators on level ground at least 3 feet apart
- Ensure both generators are turned off
- Remove the parallel operation socket covers on each generator
- Connect the parallel cables to the parallel operation sockets
- Tighten the retaining screws on the parallel kit connectors
- Attach the ground wire from the parallel kit to each generator’s ground terminal
- Double check all connections are secure before starting generators
It’s crucial to connect the generators properly before starting them up. Take care to match the labeled connectors (usually marked L and R) to the correct sockets on each generator. The ground wire provides an important safety connection between the two units.
Connecting Parallel Generators to RV Power Inlet
Once your generators are connected in parallel, follow these steps to hook them up to your travel trailer:
- Ensure generators and all RV appliances are turned off
- Plug the RV power cord into the 30-amp outlet on the parallel kit
- Connect the other end to your RV’s 30-amp power inlet
- If RV has 50-amp service, use a 30-amp to 50-amp adapter
- Start both generators according to manufacturer instructions
- Allow generators to warm up and stabilize before turning on RV appliances
Always plug the power cord into the generators first, then into the RV. This prevents any chance of backfeeding power into the generators. Start with larger appliances like air conditioning, then gradually add smaller loads to avoid overloading the system.
Operating Generators Safely
Safety is paramount when using generators. Follow these guidelines for safe operation:
- Place generators at least 20 feet away from RV and downwind if possible
- Never run generators inside the RV or in enclosed spaces
- Use a carbon monoxide detector inside your RV
- Keep generators dry and protected from rain/moisture
- Allow generators to cool before refueling
- Store fuel in approved containers away from living areas
- Perform regular maintenance per manufacturer schedule
Proper ventilation is critical to prevent carbon monoxide buildup. Even with precautions, always be alert for symptoms of CO poisoning like headache, dizziness, or nausea. If you suspect CO exposure, get to fresh air immediately and seek medical attention.
Managing Power Load on Parallel Generators
To effectively manage the power load when using parallel generators:
- Calculate your total power needs before connecting appliances
- Start with the highest wattage appliances first (usually A/C)
- Add smaller loads gradually to avoid overloading
- Monitor generator performance – if straining, reduce load
- Balance loads between both generators when possible
- Use eco-throttle mode for fuel efficiency with lighter loads
Remember that parallel generators share the load, but each unit has limits. A good rule of thumb is to stay under 80% of the total rated wattage for prolonged use. This provides a buffer and helps extend generator life.
Troubleshooting Common Issues
If you encounter problems when connecting generators, check these common issues:
- Generators won’t sync: Ensure both are same model and firmware version
- Low power output: Check all connections are tight and secure
- One generator shuts off: May be overloaded, redistribute load
- Fluctuating power: Could indicate fuel or spark plug issues
- Strange noises: Stop generators and inspect for loose components
Always consult your generator and RV manuals for model-specific troubleshooting. If problems persist, have the system checked by a qualified technician to ensure safe operation.
Maintaining Your Generator Setup
Regular maintenance keeps your generators running smoothly:
- Change oil according to manufacturer schedule
- Clean/replace air filters regularly
- Use fresh fuel and add stabilizer for storage
- Check/replace spark plugs as needed
- Inspect and clean parallel kit connections
- Test generators individually and in parallel monthly
Keep a log of maintenance activities and run times for each generator. This helps track performance and predict when services are due. Proper care extends the life of your generators and ensures reliable power for your travels.
Alternatives to Parallel Generators
While parallel generators offer flexibility, consider these alternatives:
- Single larger generator: Simpler setup, potentially quieter
- Onboard RV generator: Integrated, convenient, but less portable
- Solar panel system: Clean, quiet, but weather-dependent
- Campground power hookups: When available, most convenient option
Each option has pros and cons. Parallel generators excel in providing scalable power with portability, but may not be ideal for all situations. Assess your specific needs, travel style, and budget when choosing a power solution for your travel trailer.
Legal and Campground Considerations
Be aware of legal and campground rules when using generators:
- Check local noise ordinances for acceptable operation hours
- Observe campground quiet hours and generator policies
- Some parks restrict generator use to designated areas
- National Parks often have strict generator regulations
- Be considerate of neighboring campers
Always research the rules for your destination before relying on generator power. Some locations may require advance permission or have specific requirements for generator use.
By following these guidelines and properly connecting your Honda generators, you can enjoy reliable power for your travel trailer adventures while staying safe and considerate of others. Remember to always prioritize safety, maintain your equipment, and be a good neighbor when using generators at your campsite.