RVMP Flex Power Dual Fuel 5500i Installed Generator
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The RV Mobile Power™ Flex Power® 5500i is designed for permanent installation and has dual fuel capabilities for use with gasoline or propane.
Designed to be: compact, quiet, powerful, and efficient. Ready for new installations or replacements of current generators in RVs, 5th Wheels, Toy Haulers, Trailers, Food Truck Operators, and off-grid cabins/tiny homes. The Flex Power ® 5500i powers appliances and recharges your battery bank for extended off-grid living.
Details
Recreational vehicle owners know the importance of having a backup generator. They are often critical to a fun and comfortable outdoor adventure, but they must be reliable and safe. The RVMP Flex Power® 5500i Generator is manufactured with power, performance, and, most importantly, safety in mind. The generator’s compact design removes the traditional bulk of most generators, making it easier to fit within storage spaces or compartments. Not only is it lighter than the competition, it's also more versatile with the capability to run on both gasoline or propane. Dual fuel capacity allows for flexibility - gasoline provides a higher BTU, and propane runs cleaner and quieter.
Travel with peace of mind knowing your generator can change fuel sources with the simple flip of a switch. The RVMP Flex Power® generator also features smart start technology, removing the traditional starter, which may need to be replaced over time. Smart start technology uses a digitally produced three-phase waveform passed to the alternator's stator to rotate the engine and start more efficiently. Without a traditional starter and no spark from a commutator, the risk of igniting combustible fuels is largely removed, improving safety and offering peace of mind. Unlike generators of the past, the 5500 Watt Flex Power® model is equipped with an integrated inverter forclean power production. A completely new exhaust and cooling system has been designed for maximum cooling while staying quiet.
Your RV will be complete with the RVMP Flex Power® Generator. When partnered with solar power, your setup will keep you running even in extended boondocking and dry camping environments. This new and innovative patent-pending design brings many upgrades over traditional generator models.
Important Note: This generator is for RVs that are prepped for a permanent generator install location or have the adequate space and fuel supply (gasoline and propane) located in the area where the generator will be installed.
Important Note: This generator produces hot exhaust gases which must be piped out of the RV. Before using this generator, be sure to install a carbon monoxide detector inside the RV.
Features
- Better efficiency - On-demand power uses less fuel than other popular generator models both while running and at rest
- Dual compatibility - Runs on either gas or propane
- Consistent output - Less distortion (3% compared to 17% in competitive models) allows you to power sensitive devices like laptops, TVs, and gaming counsels, without worrying about overload
- Softer sound - Consistent output allows for a quieter run without loud rev cycles
- Significantly fewer emissions when run with propane - up to 10x less output
- Digital hour reading – Easily measure running time for maintenance
- Safer design -Engineered and built to mitigate fire risk
- Digital valve controller - Auto shutoff monitoring for fire prevention
- Remote start capability – wiring harness for connecting to controls within the RV for remote starting
- Heat sensor - Built-in protection from overheating and over-revving
- Patent-pending technology
- Certified by the USDA, EPA, CSA, and more
Specifications
- AC/DC Excitation: Brushless PM
- Amps: 45.8
- Design: Multi Pole PM
- Dimensions: 29.5" L x 19.25" W x 13.5" H
- Frequency: 60
- Fuel: Gasoline/LP
- RPM: Variable 2600-3600
- Voltage Regulation: Digital
- Volts: 119-124
- Watts: 5500
- Weight: 161 lb. (73 kg)
Document Library
Shipping Policy
Free shipping on all orders
How long does it take for delivery?
5-7 working days（Except for pre-sale products） .
Which countries do you ship to?
Only the United States, other countries need to place orders on our other websites.
We cannot provide the following services.
1. Alaska
2. Hawaii
3. PR
4. VI
How will my delivery be shipped?
UPS, FEDEX are our logistics partners, shipping Build The Power products.
I ordered more than one item. Will they all be delivered at the same time?
We try to make sure all your items reach you at the same time. Sometimes our products are not always sent together since different shipping options can be used, depending on the product. Once an item has been shipped, you will receive a shipment notification email.
Can I change the delivery address of my package after it has been shipped out?
Unfortunately, we cannot change the shipment once the product is en route.
What do I need to do when I received a different product than what I ordered?
Please contact customer support at sales@buildthepower.com
Return & Refund Policy
Build The Power is obligated to provide the return service to all customers. The return service is currently available to the country of purchase.
If the item is purchased from the Build The Power official store, the authority to request return or refund is permitted.
If the item is purchased from distributors of Build The Power, may follow the distributor policies. Please contact your distributor for further information.
Return and refund policies may vary according to local laws and regulations.
Order Cancellation
Customers can request an order cancellation within 48 hours after placing an order by email or phone with the Build The Power official store.
However, if the product has already been shipped, a 25$ intercept fee will be charged.
Please note that a transaction fee may be charged based on the payment channels after the product has been shipped.
Lost / Damaged Products Received
- If the product was not delivered or lost, please immediately contact us.
- If the product you received was damaged, or if you receive an incorrect or incomplete product, please immediately contact us with proof of videos and/or pictures.
30-Days Money-Back Guarantee
- Within 30 days of the purchase, if you are unsatisfied without quality issues, you have the authorization to refund after return the items complete, unused and in the original package. However, you are responsible for the double shipping cost with two options below:
- RMA provided by Build The Power Customer Service
Once the item is received at Build The Power warehouse and the validity is confirmed, the shipping cost for return will be deducted from the refund.
2. Self-paid Return
Please contact Build The Power Customer Service to get return details.
- If 30 days have passed since the purchase, full refund cannot be offered.
- Double shipping fee will be deducted from the original payment if you reject the shipments.
NOTE: For products that have been used, we reserve the rights to refuse the return.
Return Process
- Please contact Build The Power Service for assistance to proceed the return process with proof of purchase provided and merchandise authorization (RMA) number for return.
- Please follow the instructions guided by Build The Power service on how to properly pack and return the product safely.
Refund
- For Non-quality issues, refund is provided following the “30 Days Money-Back Guarantee ”.
- For quality issues, partial refund may be provided according to the usage time of the device after 30 days of the purchase.
- Refund will be processed within 14 business days after the product is returned to Build The Power warehouse with a refund notification to customer email
Note: Please contact us if the refund is not received within 14 business days.
Contact us:
Email: sales@buildthepower.com
* Build The Power may reserve the right for the modify and final explanation.
Warranty Period
Build The Power warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser,
- For the product of portable power station, the warranty period varies from 24 months to 72 months.
- For the product of home backup system, the warranty period varies from 48 months to 60 months.
- For the product of solar panel and accessories as cable, charger etc, 12 months is provided for the warranty service.
- For the product of generators the warranty period varies from 3 years to 10 years.
No warranty for gifts product and Warranty period may vary by country subject to local laws and regulations.
Warranty Statement
Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
- A purchased order number made through Build The Power official stores.
- Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.
Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.
Exclusions of Warranty
- Misused, abused, damaged by accident or damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.);
- Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
- Purchased from unauthorized resellers;
- Use for special application other than normal consumer use;
- Lost, stolen or full refunded product;
- Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes;
- Invalid proof of purchase;
- Warranty period expired
- The battery model on the warranty certificate does not match the actual item;
- Unauthorized alteration on the warranty certificate;
- Product wear and tear through the usage of time.
Return and Refund
- Order Cancellation:
Order Cancellation can be requested by customer within 48 hours after placing an order by email or phone with the Build The Power official store.
If the product has been shipped, an intercept fee will be charged.
- 30 days money-back guarantee will be automatically credited to your order.
Disclaimer of Implied Warranties
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of fitness for a particular purpose or use and any implied warranty of merchantability otherwise applicable to Build The Power portable solar generators. Build The Power and its affiliated companies shall not be liable for any special, incidental or consequential damages, including lost profits. There are no warranties extended other than as provided herein.
This limited warranty may be modified only by Build The Power. Any implied warranties allowed by law shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights. You also have other rights from state to state. Build The Power’s only liability shall be the repair or replacement as stated above.
If you have any further questions, please send an e-mail to sales@buildthepower.com
Description
The RV Mobile Power™ Flex Power® 5500i is designed for permanent installation and has dual fuel capabilities for use with gasoline or propane.
Designed to be: compact, quiet, powerful, and efficient. Ready for new installations or replacements of current generators in RVs, 5th Wheels, Toy Haulers, Trailers, Food Truck Operators, and off-grid cabins/tiny homes. The Flex Power ® 5500i powers appliances and recharges your battery bank for extended off-grid living.
Details
Recreational vehicle owners know the importance of having a backup generator. They are often critical to a fun and comfortable outdoor adventure, but they must be reliable and safe. The RVMP Flex Power® 5500i Generator is manufactured with power, performance, and, most importantly, safety in mind. The generator’s compact design removes the traditional bulk of most generators, making it easier to fit within storage spaces or compartments. Not only is it lighter than the competition, it's also more versatile with the capability to run on both gasoline or propane. Dual fuel capacity allows for flexibility - gasoline provides a higher BTU, and propane runs cleaner and quieter.
Travel with peace of mind knowing your generator can change fuel sources with the simple flip of a switch. The RVMP Flex Power® generator also features smart start technology, removing the traditional starter, which may need to be replaced over time. Smart start technology uses a digitally produced three-phase waveform passed to the alternator's stator to rotate the engine and start more efficiently. Without a traditional starter and no spark from a commutator, the risk of igniting combustible fuels is largely removed, improving safety and offering peace of mind. Unlike generators of the past, the 5500 Watt Flex Power® model is equipped with an integrated inverter forclean power production. A completely new exhaust and cooling system has been designed for maximum cooling while staying quiet.
Your RV will be complete with the RVMP Flex Power® Generator. When partnered with solar power, your setup will keep you running even in extended boondocking and dry camping environments. This new and innovative patent-pending design brings many upgrades over traditional generator models.
Important Note: This generator is for RVs that are prepped for a permanent generator install location or have the adequate space and fuel supply (gasoline and propane) located in the area where the generator will be installed.
Important Note: This generator produces hot exhaust gases which must be piped out of the RV. Before using this generator, be sure to install a carbon monoxide detector inside the RV.
Features
- Better efficiency - On-demand power uses less fuel than other popular generator models both while running and at rest
- Dual compatibility - Runs on either gas or propane
- Consistent output - Less distortion (3% compared to 17% in competitive models) allows you to power sensitive devices like laptops, TVs, and gaming counsels, without worrying about overload
- Softer sound - Consistent output allows for a quieter run without loud rev cycles
- Significantly fewer emissions when run with propane - up to 10x less output
- Digital hour reading – Easily measure running time for maintenance
- Safer design -Engineered and built to mitigate fire risk
- Digital valve controller - Auto shutoff monitoring for fire prevention
- Remote start capability – wiring harness for connecting to controls within the RV for remote starting
- Heat sensor - Built-in protection from overheating and over-revving
- Patent-pending technology
- Certified by the USDA, EPA, CSA, and more
Specifications
- AC/DC Excitation: Brushless PM
- Amps: 45.8
- Design: Multi Pole PM
- Dimensions: 29.5" L x 19.25" W x 13.5" H
- Frequency: 60
- Fuel: Gasoline/LP
- RPM: Variable 2600-3600
- Voltage Regulation: Digital
- Volts: 119-124
- Watts: 5500
- Weight: 161 lb. (73 kg)
Document Library
Shipping Policy
Free shipping on all orders
How long does it take for delivery?
5-7 working days（Except for pre-sale products） .
Which countries do you ship to?
Only the United States, other countries need to place orders on our other websites.
We cannot provide the following services.
1. Alaska
2. Hawaii
3. PR
4. VI
How will my delivery be shipped?
UPS, FEDEX are our logistics partners, shipping Build The Power products.
I ordered more than one item. Will they all be delivered at the same time?
We try to make sure all your items reach you at the same time. Sometimes our products are not always sent together since different shipping options can be used, depending on the product. Once an item has been shipped, you will receive a shipment notification email.
Can I change the delivery address of my package after it has been shipped out?
Unfortunately, we cannot change the shipment once the product is en route.
What do I need to do when I received a different product than what I ordered?
Please contact customer support at sales@buildthepower.com
Return & Refund Policy
Build The Power is obligated to provide the return service to all customers. The return service is currently available to the country of purchase.
If the item is purchased from the Build The Power official store, the authority to request return or refund is permitted.
If the item is purchased from distributors of Build The Power, may follow the distributor policies. Please contact your distributor for further information.
Return and refund policies may vary according to local laws and regulations.
Order Cancellation
Customers can request an order cancellation within 48 hours after placing an order by email or phone with the Build The Power official store.
However, if the product has already been shipped, a 25$ intercept fee will be charged.
Please note that a transaction fee may be charged based on the payment channels after the product has been shipped.
Lost / Damaged Products Received
- If the product was not delivered or lost, please immediately contact us.
- If the product you received was damaged, or if you receive an incorrect or incomplete product, please immediately contact us with proof of videos and/or pictures.
30-Days Money-Back Guarantee
- Within 30 days of the purchase, if you are unsatisfied without quality issues, you have the authorization to refund after return the items complete, unused and in the original package. However, you are responsible for the double shipping cost with two options below:
- RMA provided by Build The Power Customer Service
Once the item is received at Build The Power warehouse and the validity is confirmed, the shipping cost for return will be deducted from the refund.
2. Self-paid Return
Please contact Build The Power Customer Service to get return details.
- If 30 days have passed since the purchase, full refund cannot be offered.
- Double shipping fee will be deducted from the original payment if you reject the shipments.
NOTE: For products that have been used, we reserve the rights to refuse the return.
Return Process
- Please contact Build The Power Service for assistance to proceed the return process with proof of purchase provided and merchandise authorization (RMA) number for return.
- Please follow the instructions guided by Build The Power service on how to properly pack and return the product safely.
Refund
- For Non-quality issues, refund is provided following the “30 Days Money-Back Guarantee ”.
- For quality issues, partial refund may be provided according to the usage time of the device after 30 days of the purchase.
- Refund will be processed within 14 business days after the product is returned to Build The Power warehouse with a refund notification to customer email
Note: Please contact us if the refund is not received within 14 business days.
Contact us:
Email: sales@buildthepower.com
* Build The Power may reserve the right for the modify and final explanation.
Warranty Period
Build The Power warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser,
- For the product of portable power station, the warranty period varies from 24 months to 72 months.
- For the product of home backup system, the warranty period varies from 48 months to 60 months.
- For the product of solar panel and accessories as cable, charger etc, 12 months is provided for the warranty service.
- For the product of generators the warranty period varies from 3 years to 10 years.
No warranty for gifts product and Warranty period may vary by country subject to local laws and regulations.
Warranty Statement
Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
- A purchased order number made through Build The Power official stores.
- Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.
Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.
Exclusions of Warranty
- Misused, abused, damaged by accident or damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.);
- Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
- Purchased from unauthorized resellers;
- Use for special application other than normal consumer use;
- Lost, stolen or full refunded product;
- Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes;
- Invalid proof of purchase;
- Warranty period expired
- The battery model on the warranty certificate does not match the actual item;
- Unauthorized alteration on the warranty certificate;
- Product wear and tear through the usage of time.
Return and Refund
- Order Cancellation:
Order Cancellation can be requested by customer within 48 hours after placing an order by email or phone with the Build The Power official store.
If the product has been shipped, an intercept fee will be charged.
- 30 days money-back guarantee will be automatically credited to your order.
Disclaimer of Implied Warranties
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of fitness for a particular purpose or use and any implied warranty of merchantability otherwise applicable to Build The Power portable solar generators. Build The Power and its affiliated companies shall not be liable for any special, incidental or consequential damages, including lost profits. There are no warranties extended other than as provided herein.
This limited warranty may be modified only by Build The Power. Any implied warranties allowed by law shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights. You also have other rights from state to state. Build The Power’s only liability shall be the repair or replacement as stated above.
If you have any further questions, please send an e-mail to sales@buildthepower.com
what’s included
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Specification
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Shipping & Delivery
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Top Solar and Generator Brands
Free U.S. Shipping
30-Day Returns
Expert Support Team
Get Started In 3 Simple Steps
The whole process is easy – no salespeople involved.
Step 1: Choose Your System
Pick your products at direct-to-you prices. Browse complete systems and see exactly what you'll pay.
Step 2: Place Your Order
Quick online checkout with free U.S. shipping. Your order ships within 3-5 business days.
Step 3: Power Up
Professional guidance for setup and connection. Our team helps you get the most from your power station.
The Build The Power Difference
Here’s why you’ll prefer us over other providers.
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 Straightforward Online Pricing |
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 No Pushy Sales Tactics |
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 Expert Technical Support |
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 24/7 Digital Ordering |
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 Clear Installation Steps |
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 No Hidden Costs or Fees |
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What Our Customers Say
Direct experiences from homeowners who took control of their energy costs.
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- John S.
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- John S.
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- John S.
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- John S.
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- John S.
Love my product. Customer service was good. Overall happy
Great Customer Service
Great Product, Happy with my purchase
Frequently Asked Questions
How is Build The Power different from other companies?
Unlike traditional companies, we've removed the complex network of salespeople, project managers, and dealer fees. You browse and buy directly through our digital platform, cutting costs by 20-50% while still getting expert support when you need it.
How does your ordering process work?
Browse & Select – Find the product that suits your needs.Add to Cart – Click "Add to Cart" and proceed to checkout. Secure Payment – Complete your purchase using our secure payment options. Order Confirmation – You’ll receive an email confirmation with your order details. Shipping & Delivery – We process and ship your order as quickly as possible. A tracking number will be provided. If you have any questions, feel free to contact us!
Do you offer free shipping?
Yes! We offer free shipping on all orders, with no minimum purchase required. Enjoy hassle-free shopping without worrying about extra shipping costs. Once your order is processed, we’ll provide a tracking number so you can follow your shipment’s progress.
What's your return policy?
We offer a 30-day return policy for your peace of mind. If you're not completely satisfied with your purchase, you can return it within 30 days of delivery for a refund or exchange. The item must be in its original condition and packaging.
To start a return, contact our support team, and we’ll guide you through the process.
Can I get help with installation?
We do not offer installation services, but we’re happy to recommend trusted companies or services that can assist you. If you need help finding an installer, feel free to contact us, and we’ll point you in the right direction!
Top Solar and Generator Brands
Free U.S. Shipping
30-Day Returns
Expert Support Team
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(507) 636-3614
M-F 9-5 EST
sales@buildthepower.com
312 W. 2nd St Casper, WY 82601
