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That's also anecdotal.
No, that's a repeatable observation. There's a difference. Look, take it up with Volkswagen AG. They're the ones who designed the electrical system in the car in question. Don't shoot the messenger, but a long term business plan centered around aftermarket car batteries is going to be a challenging play, for these and other reasons.
Apart from the environmentals (see sandworm101), are debatable and the main tradeoffs is weight vs capacity.
Sports car enthusiasts seems like the most likely market. Some of these guys will drill holes into foot pedals to save grams. You'd need to look at what's available to them to see if this would sell. Comparing to average lead batteries is not much use.
Anyway, this probably isn't the long game.
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I leave my lights on and kill my battery once every few months, so this is easily worth it for me, but I'm probably an outlier[0]. [0] https://en.wikipedia.org/wiki/Attention_deficit_hyperactivit...
Why not add the smarts to a lead/acid battery? Probably only a few bucks worth of electronics.
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You're right! Lead acid car batteries are one of the great recycling success stories. What's interesting is that the volume of lead acid car batteries in the world is so high, that even at that high recycling rate, that still leaves 24 million pounds of lead each year from car batteries that don't get recycled. There's also been some problems recently with lead recycling plants contaminating the environment [1]. You'…
This might be an unpopular view here but I think artificially increasing core charge fee via laws could easily bring that recycling percentage to 99%. Could you imagine if you did not hand in your old battery when buying a new one it cost an extra $300 instead of $20 or so like now? A token portion of that could be used to fund state inspections of recycling facilities. The whole dismantler/recycling system in place…
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Are led headlights a similar draw?
I am not aware of any led headlights. Not in the US anyway. All the ones I know about have LED only for daytime running lamps and high beams. If there were led headlights (or fluorescent for that matter) you should expect the draw to be about 1/5 that number. That number includes marker and tail lights and those can be LED, so the number would be lower in that case.
My car has a significant design flaw(1), in that it allows children to turn on the backseat car lights and leave them on. I've had more dead batteries in the five years I've had sentient children than I've had in the 40 years prior. This is a great idea. (1) Perhaps the design flaw is in the children.
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You're probably getting downvoted because a c*4 discharge rate implies over 3 kilowatts continuous draw, which is rather unlikely. Probably your battery is near dead. Also F150 pickup trucks are about $60K when loaded with options. Those guys are free spenders compared to commuter car drivers.
That's not how it works. By design, there is still plenty of capacity left in the battery when the car's computer shuts down the accessories. The accessory draw is enough to lower the (indicated) terminal voltage from about 12.6 volts to about 12.0 in 15-30 minutes, depending on what accessories are actually turned on.
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This might be an unpopular view here but I think artificially increasing core charge fee via laws could easily bring that recycling percentage to 99%. Could you imagine if you did not hand in your old battery when buying a new one it cost an extra $300 instead of $20 or so like now? A token portion of that could be used to fund state inspections of recycling facilities. The whole dismantler/recycling system in place…
What if you're not replacing one?