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Will the Dexter DX Series Electric Over Hydraulic Brake Actuator Drain My Battery?  

Updated 02/17/2026 | Published 06/08/2024

Question:

Will this actuator drain the tow vehicle battery when parked and trailer connected over night, being that is requires a constant 12v supply, truck is a 2022 Ram 2500

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Expert Reply:

No, it won't. The Dexter DX Series Electric Over Hydraulic Brake Actuator item # K71-650 will have a draw on the truck battery. However, how much is dependent on the truck itself as many vehicles will allow the draw for a limited time before shutting down. It's like the dome lights in your truck or your radio. They turn off eventually just like the power to your 7-Way.

expert reply by:
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Jerred H
Jerred H. profile picture
Etrailer Expert

Jerred H.

2/17/2026

Hey, how did things go with the Dexter DX Series actuator on your Ram 2500? Did you notice any battery drain after leaving it connected overnight? Your experience could help others wondering about the same setup.

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