Most of us use a single car battery to, you know, start a car. Drake Anthony, better known on YouTube as styropyro, looked at that modest ambition and said, “Hold my copper plate.” The result? A 28,000-pound wall of 400 wired-together lead-acid batteries capable of pumping out enough electricity to make grown engineers weep into their safety goggles.
The two-hour experiment subjects a wild variety of everyday objects to this frankly unreasonable amount of current, but the real showstopper comes at the 1:16:20 mark. That’s when a steel suspension spring — the kind quietly doing heroic work holding up the corner of your car every single day — gets hooked up to the battery array. It glows a deep, furious orange before erupting into flames and slowly, dramatically disintegrating.
Somewhere, a suspension engineer had a strange feeling and didn’t know why.
Why It Happened
The reason the spring put on such a great show while other objects either vaporized instantly or shrugged the current off entirely comes down to its length. That length allowed it to behave like a resistor, choking the current down from a staggering 8,000 amps to around 1,000 amps as it melted. That slower reaction is exactly what produced those jaw-dropping visuals. A chain came pretty close to stealing the spotlight too — briefly glowing like it had a cameo in a Ghost Rider film — but it couldn’t quite close the deal.
As for why lead-acid batteries specifically? They’re capable of sustaining high current output for extended periods, making them the right tool for this particular flavor of madness. The custom switch and connectors alone required over 1,000 pounds of copper just to handle the load — and the magnetic fields generated were strong enough that the entire cable layout had to be engineered carefully to keep things from getting even more chaotic than they already were. Car enthusiasts who’ve spent three weekends routing a subwoofer cable under their carpet now have some perspective on what a “difficult wiring job” actually looks like.
The whole thing is a reminder that electricity, in truly monstrous quantities, will humble even the most robust pieces of hardware your car relies on. If a steel spring rated to support thousands of pounds of vehicle weight can be reduced to a glowing puddle of regret, the rest of us are probably wise to keep our battery counts in the single digits.
Anthony’s video is absolutely worth the two hours if you’ve got them. It’s not a car video by any stretch, but it’s the kind of experiment that makes you appreciate both the wild extremes of physics and the very sensible engineers who made sure none of this is ever going to happen in your driveway. Probably.