Use this trick daily for best results, especially in colder weather when batteries struggle more.
Pair it with routine maintenance, such as cleaning battery terminals and checking alternator output.
Store the habit mentally by attaching it to another action—like buckling your seatbelt—to make it automatic.
Variations:
Winter Version: Increase the wait time to 15 seconds in freezing conditions to help stabilize voltage.
Hybrid/Electric Variation: EVs generally don’t need this trick, but pre-activating lights can still help the system power up smoothly.
Old-Car Mode: For vehicles over 15 years old, this technique can be especially beneficial due to older electrical systems.
FAQ
Q: Will turning on headlights before starting drain my battery?
A: The small amount of energy used is negligible. In fact, stabilizing the electrical system can reduce long-term strain on the battery.
Q: Why does this actually help?
A: It minimizes the sudden voltage drop that happens when you crank the engine, giving the battery a smoother workload.
Q: Can this trick replace proper maintenance?
A: No—think of it as a helpful bonus. Regular servicing is still essential.
Q: Does this work on push-start vehicles?
A: Yes. Simply turn on the lights before pressing the start button.
