Why Would Electric Trailer Jack Only Operate When Plugged Into Shore Power
Updated 01/27/2026 | Published 08/24/2024
Question:
New, first-time owner My electric jack will not work on 12V alone, only when shore power connected. Is this a common problem? What set some possible solutions?
asked by: John
0
Expert Reply:
Hey John, thanks for reaching out and congrats on your new-to-you RV!
If your 12V electric jack, like part # EJ-3520-BBX, is only working when you plug into shore power that leads me to believe that your battery bank is depleted and needs to be charged and/or checked to see how healthy the life of the battery bank is.
expert reply by:
Jon G
0
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 >
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Gwendolyn Y.
1/27/2026
Hey John, how did things go after you checked your battery bank for the electric jack? Did charging or testing the batteries get it working on 12V power again? Your update could make it easier for the next new RV owner facing the same issue.