Reply to Put. Your. Car. Lights. On.

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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]It is so weird to me that folks don’t just have their lights on all the time. It’s how I learned to drive. Even in broad daylight it helps you be more visible on the road.

It’s an automatic habit so I don’t have to think about whether they should be on or not. I turn the car on, turn the lights on. Turn the car off, turn the lights off. Brights/high beam only when driving at night.

Is there a reason not to do this that I don’t know about?
[/quote]

+1. I did It every time in my older car, and now that I have a newer car that turns off the lights when I remove the key, I just leave them on all the time. It makes a big difference in day time driving.

Not sure why PP thinks it affects the battery of a running car. But even if it does, worth it for safety.[/quote]

PP doesn’t know that alternators are a thing.[/quote]

correct,  but as more and more electrical crap is put into cars,  the more battery is stressed, and non LED headlights  and since most people drive short distances,  the alternators may not have enough time running on the short trips to completely top off the battery charge, couple this with the fact that automakers are putting smaller batteries in cars to help save weight and increase fuel economy.

its a diminishing return,  eventually you could end up with a dead battery.
https://www.aa1car.com/library/electrical_amp_loads.htm

How Amp Loads Affect the Charging System and Battery

Most of the electrical power required by the electrical and electronic devices in a vehicle is provided by the alternator. The battery provides cranking amps to start the engine. After that, the alternator takes over as soon as the engine is running to supply the current needs of the vehicle while also recharging the battery. If the alternator's output cannot keep up with the electrical demands that are being placed on it, the additional current that's needed will be pulled out of the battery. Eventually, this may cause the battery to run down if the vehicle is not driven long enough or fast enough for the alternator to make up the difference.

Many high power aftermarket accessories such as offroad lighting or high wattage sound systems may require replacing the stock alternator with a high output alternator and/or adding a second backup battery to provide extra power as needed.[/quote]

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