How to Charge a Battery on an Enclosed Trailer
Updated 06/14/2018 | Published 06/12/2018
Question:
how can i keep my battery charged from my 7 way plug on my truck being as my trailer has electric brakes. also can you charge while driving using your clearance light wire to charge the battery. thanks
asked by: Steve
Expert Reply:
If you are referring to a breakaway battery then you can use the 12 volt (usually black) power wire that is present in the 7-way trailer connector to charge it. I have attached a photo that shows where the 12 volt power wire is located on the 7-way trailer connector.
If you are referring to an auxiliary battery used to power a winch or appliances and lights then you are going to need to use a battery charger. For this, I recommend the Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1225D. This charger will use the vehicle's alternator to charge the trailer battery while the vehicle is running. The excessive charge if needed can then be diverted back to the tow vehicle's battery.
The clearance light circuit will not be sufficient to charge either of the above batteries. I have attached a review video on the charger for you as well.
Product Page this Question was Asked From
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 25 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 12V
- 25 Amps
- DC to DC
- AGM
- Calcium
- Gel
- Lead Acid
- Lithium
- Solar Panel
- Vehicle Battery
- Smart Charge
- Trickle Charge
- Redarc
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: e38fv
- Shop: BulletProof Hitches Receiver Lock for Adjustable Ball Mount - 4" Span - Stainless Steel - Qty 3
- Search Results: 7~way bracket
- Search Results: create account
- Search Results: enclosed trailer light
- Search Results: trailer sway control
- Search Results: anti~sway bars
- Search Results: sway control trailer hitch ball mount
- Shop: Caliber EdgeGlide 2.0 Transition Plate for Enclosed Trailers - 72" Long - Qty 3
- Shop: Trailer Wiring
- Shop: Brake Controller
- Article: Brake Controller Installation: Starting from Scratch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: etrailer Enclosed Trailer Transition Plate - Universal - 1,000 lbs - Qty 1
- Shop: ICON Trailer Coupler Lock for Cast 2-5/16" Ball Coupler - Cast and Stainless Steel - Black
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Shop: Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 25 Amp
- Shop: Curt Trailer Breakaway Kit with Trickle Charger, LED Tester, and 5 Ah Lead Acid Battery - Side Load
- Video: Let’s Check Out the No-Drill Mount for Electrical Mounting Bracket
- Video: Review of the Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package
- Video: An In-Depth Look at the Mighty Cord Universal 7-Way Mounting Bracket
- Video: Let’s Check Out the No-Drill Mount Bracket, Long
- Video: Install: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers on a 2008 Toyota Sequoia
- Video: Breaking Down the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers
- Video: An In-Depth Look at the CargoSmart Shelf Brackets for E Track or X Track Systems
- Q&A: Can A 205/75/R15 Tire Be Replaced With A 225/75/R15 Tire
- Shop: Suspension Enhancement
- Q&A: Can I Charge My Trailer Battery Using 7-Way Trailer Connector on Truck
- Q&A: Where Is The etrailer Trailer Tool Box Made?
- Q&A: How to Charge a Trailer Battery Through a 7-Way Connector
on Battery Charger
