Recommendation For Charging Trailer Battery Off Tow Vehicle While Driving
Question:
Hello, I have a trailer that I recently installed a 7 pin system into for a tow behind fiber glass trailer Im taking on a road trip. Im hoping to find something that will pull power to trickle charge and maintain the battery of the trailer while I am towing it on a 2 month trip. Reading online, I saw some folks just pulling power from the 30a power line on the 7 pin with an inline fuse, but Im not sure thats the healthiest method for the battery without a controller inline. Can you all make any recommendations on products that might be able to help keep things topped off and charged so I can avoid hooking up to grab power too frequently. Thanks for your help!
asked by: Ian D
Expert Reply:
The Redarc In-Vehicle BCDC Battery Charger # RED96FR is going to be the best option for charging and maintaining the battery on your trailer while you travel. The Redarc is compatible with AGM, gel, standard lead acid, calcium, and Lithium ion (LiFePO4) batteries. This will require a MIDI Fuse Kit # RED76FR along with the wiring and connectors for installing on your trailer.
Most trailers will simply use a Battery Charge Line Kit # RM-156-25 to prevent overcharging the battery. This is only recommended if your trailer battery matches your vehicle battery in construction type to prevent damage to the 2nd battery overcharging. If your vehicle is not set up for a charge line on the 7-way we have the Vehicle Side # RM-156-75.
Products Referenced in This Question
23-Amp MIDI Fuse Kit for Redarc In-Vehicle 12-Amp BCDC Battery Charger
- Accessories and Parts
- Battery Charger
- Fuse Kit
- Redarc
more information >
Roadmaster Battery Charge Line Kit for Towed Vehicles
- Accessories and Parts
- Tow Bar Wiring
- Battery Charge Line Kit
- Roadmaster
more information >
Roadmaster Battery Charge Line Kit for Motorhomes
- Accessories and Parts
- Tow Bar Wiring
- Battery Charge Line Kit
- Roadmaster
more information >
Product Page this Question was Asked From
Redarc In-Vehicle BCDC Trailer Battery Charger - Single Input - DC to DC - 12V/24V - 12 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- Charges Only
- 12V
- 24V
- Vehicle Battery to Auxiliary Battery
- Redarc
more information >
Featured Help Information
Instructions
Continue Researching
- Article: How to Charge a Trailer Battery While Driving: 3 Common Problems (And How to Fix Them)
- Q&A: Will the Draw-Tite Trailer Hitch Fit a 2022 Volvo XC90 Recharge
- Q&A: Recommended Replacement for Atwood Surge Brake Actuator 85778
- Article: Trailer Wiring Diagrams
- Article: Pintle-Hitches
- Q&A: How to Pick Out Replacement Grease Seals for Hadco 3122
- Q&A: Replacement Hub Needed for Lippert 122093 Hub on 5,200 lbs Axle
- Article: How to Charge a Dump Trailer Battery
- Article: Anti-Rattle Devices
- Q&A: Replacement Conversion Kit For Motor For # 781005
- Q&A: Does The etrailer Invisible Base Plate Kit # e86YR Need An Adapter For A Blue Ox Aventa II Tow Bar
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: How to Choose a Battery Charger
- Q&A: Solution to Making Charging Dump Trailer Battery from Tow Vehicle Battery as Efficient as Possible