Does Blue Ox Towed Vehicle Battery Charge Line Wiring Harness # BLU44ER Have Backfeed Protection
Updated 07/29/2026 | Published 07/28/2026
Question:
Does the BLU44ER charge line include a diode or other circuitry to prevent battery drain?
asked by: Howard
Helpful Expert Reply:
Hey Howard, great question but yes the Blue Ox Towed Vehicle Battery Charge Line Wiring Harness # BLU44ER that you referenced does have a diode built into it so that it doesn't backfeed or reverse charge from the towed vehicle to the tow vehicle. That means you will not need to install anything else with this. What are you flat towing?
Jeff T.
7/29/2026
It was the best thing I could have added… Because my plug in hybrid requires you to stop every several hours and start the engine… With this addition I do not have to worry about the battery…
Jameson C.
7/29/2026
Product Page this Question was Asked From
Blue Ox Towed Vehicle Battery Charge Line Wiring Harness
- Accessories and Parts
- Flat Tow Wiring Harness
- Battery Charge Line Kit
- Blue Ox
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Howard
7/28/2026
I’ll be towing a 2018 jeep wrangler behind a 40 foot Tiffin Class A motorhome.