How To Prevent Tekonsha Primus Trailer Brake Controller From Draining Vehicle Battery When Sitting
Question:
How much current does the controller draw when it is in sleep mode? I see that the LEDs go out ofter some minutes of not being used, so I assume it enters a low-power sleep mode? My concern is battery drain if the vehicle is left sitting for a few months.
asked by: Steve H
Expert Reply:
I wish I could give you an exact power draw for the Tekonsha Primus IQ Trailer Brake Controller # TK90160 but after spending 2 hours on hold with them they only said it is near 0 draw. Since it sounds like your Primus is connected directly to the battery and not a ignition powered switch you might consider adding a Relay # BDW42035 so the power going to the controller will switch off when the ignition is switched off.
With any battery which sits for months at a time you really should use a Maintainer # 329-GENIUS1 to prevent damage to the battery. Even without a draw a battery can still degrade over time.
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Product Page this Question was Asked From
Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional
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on Trailer Brake Controller
Steve H.
3/8/2024
Thank you for the prompt reply, Bud!