Powering a Refrigerator in a Trailer While Towing
Question:
I have a small RV trailer with a mini fridge. I want to run fridge while trailer is being towed. It draws 3.6 amps. The trailer will have a deep cycle battery and has a converter when connected to shore power. Can I run the fridge off an auxiliary 12 volt outlet while RV is being towed? How?
asked by: John R
Expert Reply:
Some items in a trailer or RV will run off of 12 volt DC power or AC power so if your fridge runs when not connected to shore power then it will run off of the battery. That battery can receive a maintenance charge from the 12 volt circuit on a 7-Way trailer connector but the fridge would draw power faster than the 12 volt circuit can charge.
What you would need to do to provide the best charge to the battery is use a DC to DC charger while you are towing such as # 331-BCDC1240D.
If the fridge is strictly AC powered then you would need to wire a power inverter such as # WC3720 to the trailer/RV battery and plug the fridge into it when you go to tow the trailer. I do still recommend using a DC to DC charger to reduce the chance of the fridge draining the battery.
Products Referenced in This Question
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 40 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 200 Ah
- Charges/Maintains
- 12V
- Solar Panels to Auxiliary Battery
- Vehicle Battery to Auxiliary Battery
- Redarc
more information >
Wagan Mobile Power Inverter - AC Outlet and USB Port - 1,000 Watts
- 12V Power Accessories
- Power Inverter
- 3 AC Outlets
- 2 USB Outlets
- 1000 Watts
- Wagan
more information >
Product Page this Question was Asked From
Trailer Breakaway Kit Battery Charger
- Accessories and Parts
- Trailer Breakaway Kit
- Battery Charger
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Wagan Mobile Power Inverter - AC Outlet and USB Port - 1,000 Watts
- Shop: Kenda Karrier ST205/75R15 Radial Trailer Tire with 15" Black Mod Wheel - 5 on 4-1/2 - LR D
- Q&A: Will Lippert Turning Point Universal Wedge Fit B&W Companion OEM 5th Wheel Hitch
- Q&A: How to Use an AC Powered Mini Fridge in a DC Powered RV
- Shop: Castle Rock ST225/75R15 Radial Tire w/ 15" Eagle Aluminum Wheel - 6 on 5-1/2 - LR D - Black
- Shop: Castle Rock ST225/75R15 Radial Tire w/ 15" Condor Aluminum Wheel - 6 on 5-1/2 - LR D - Copper
- Shop: Loadstar ST205/75D14 Bias Trailer Tire with 14" Black Wheel - 5 on 4-1/2 - Load Range C
- Shop: Vitrifrigo DP150i Double Door RV Mini Fridge w/ Freezer - 5.3 cu ft - 12V - Black
- Shop: Kenda Karrier ST225/75R15 Radial Tire with 15" Black Galvstar - 6 on 5-1/2 - Load Range D
- Search Results: rv refrigerators
- Search Results: inverter
- Shop: Wheel Cover
- Video: MaxxTow Tow Hook Review
- Video: EZ Flush RV Sewer - Hoses - D04-0054 Review
- Search Results: tire covers
- Video: Camco RV Sewer - Hoses - CAM39867 Review
- Search Results: rv sewer hose
- Shop: Suspension Enhancement
- Q&A: Can You Convert to 2-1/2 Inch Shank From 2 Inch With Reese Weight Distribution Hitch
- Article: Trailer Wiring Diagrams
- Search Results: safety chains
- Shop: Trailer Hitch
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer jack
- Article: Trailer Tire Sizing
- Video: B and W Turnoverball Underbed Gooseneck Trailer Hitch Installation - 2021 Ram 2500
- Shop: Trailer Wiring
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Video: Curt Fifth Wheel Kit Installation - 2020 Ram 2500
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
on Accessories and Parts
