How To Wire EJ-3520-BBX Jack Directly To A Trailer Battery
Updated 10/25/2021 | Published 10/24/2021
Question:
Im looking at this jack. e25TR My question is I dont need to use truck power, I have trailer power. How many wires are in the 7 pin plug? Is it just 2? A positive and a negative wire? I want to wire it into my trailer battery. Thank you
asked by: Scott D
Expert Reply:
As the etrailer.com Electric Jack # EJ-3520-BBX only need to be powered, you are correct in that only 2 of the ports will be used. When looking at the front of the 7 Way plug, these will be the 11 o'clock position for power and the 5 o'clock position for the ground.
If you prefer to have this wired directly to a battery on your trailer, you will need to remove the 7 Way plug and wire the red wire to the positive side of the battery and the black wire to the negative side.
Product Page this Question was Asked From
Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black
- Camper Jacks
- Pop Up Camper
- Teardrop Camper
- Travel Trailer
- A-Frame Jacks
- Steel
- 3001 - 4000 lbs
- Electric Jack
- 18 Inch Lift
- Bolt-On
- 1 Jack
- RAM
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black
- Q&A: Wiring An Electric Trailer Tongue Jack Into 7-Way Vehicle Trailer Connector
- Shop: Replacement Power Unit for etrailer and Ram Hydraulic Trailer Jacks and Scissor Hoist Systems
- Search Results: power tounge jack
- Article: How to Install an Electric Trailer Jack
- Search Results: ring terminals
- Shop: Ring Terminal - 12-10 Gauge Wire - 3/8" Ring ID
- Search Results: trailer wiring accessories and parts
- Search Results: battery wiring
- Search Results: battery connectors
- Search Results: battery harness
- Q&A: Connecting Electric Trailer Jack Directly to 12V Battery
- Q&A: Do I Wire my Power jack to the Junction Box or Directly to the Battery
- Video: etrailer Electric Jack with Footplate Installation - 2011 Forest River Flagstaff Classic Super Lite
- Video: Let’s Check Out the Ring Terminal
- Video: A Closer Look at the Performance Tool Wire Cutters with In-Handle Crimper and Bolt Cutter
- Video: Feature Review Deka Ring Terminal
- Video: Detailed Breakdown of the Electric Jack w/ Footplate
- Shop: Wire Cutters with In-Handle Crimper and Bolt Cutter - 8" Long
- Shop: Stromberg Carlson Electric A-Frame Tongue Jack - 18" Lift - 2,500 lbs
- Shop: Single Pole 30 Amp Thermal Circuit Breaker - No Mounting Bracket
- Shop: Deka Ring Terminal - 12-10 Gauge - 3/8" Ring ID - Nylon Insulation - Yellow - Qty 1
- Video: Checking Out the Electric Jack w/ Footplate
- Shop: Vehicle Tow Bar Wiring
- Search Results: accessories and parts
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
on Camper Jacks
