From phones and laptops to electric vehicles, drones, and smartwatches, almost everything we use runs on batteries, yet no matter how advanced our tech gets, charging still takes time. We have all waited for our phone to hit 100% before leaving the house, and EV drivers know the reality of planning trips around charging stops and long recharge times. That’s why a new breakthrough from Australia feels almost unreal. Scientists have built the first working prototype of a quantum battery, a device that can charge in femtoseconds and hold energy far longer than it takes to recharge. To put that in perspective, a femtosecond is one quadrillionth of a second (0.000000000000001 seconds)! The project, developed at CSIRO, marks the first time researchers have shown a battery that can charge, store, and release energy using the laws of quantum mechanics.
The Big Difference
Traditional batteries store energy through chemical reactions. When you plug in your phone or laptop, electricity drives ions through electrodes, gradually building up a charge until the battery is full. The process is slow and the bigger the battery the longer it takes to reach full capacity. Electric vehicles provide a great example where more storage means more waiting. Quantum batteries, however, work in a completely different way. Instead of charging each cell independently they exploit collective quantum effects, a phenomenon where multiple quantum cells interact and share energy simultaneously. This means that as more cells are added the battery does not slow down but actually charges faster. It is a counterintuitive concept that scientists have predicted for years but physicist James Quach and his team have now shown it works in a real device.
Charging in Femtoseconds
The most shocking part of the prototype is how it charges. The battery is powered wirelessly using a laser and reaches full charge in femtoseconds. That timescale is impossible to perceive because in one femtosecond light travels only about 300 nanometers which is roughly the size of a small virus. Even more impressive, the battery holds its energy for nanoseconds which is about a million times longer than the charging process itself. I know I’ve been doing this a lot in this article but to put in perspective once again if a normal battery followed the same ratio, a device that takes one minute to charge would stay powered for multiple years. This dramatic difference between charge time and storage time shows just how different quantum physics is when compared to the laws of nature we are used to.
Why the Prototype is Still Tiny
Despite all of the excitement around it, the current version of the battery cannot power real devices yet. Its energy capacity is only a few billion electronvolts, far below what is needed for everyday electronics. Right now the prototype serves as simply a proof of concept rather than a product ready for the market. The next major challenge for researchers is increasing how long the battery can store energy and scaling the system to larger sizes. Every new technology starts this way. Early transistors once filled rooms and powered almost nothing yet they are now the foundation of all modern technology today.
The Future
As this technology continues to develop, the possibilities are enormous. Researchers imagine drones or vehicles being charged wirelessly while in motion using quantum controlled light sources. Instead of plugging in devices overnight, future electronics could recharge almost instantly. Larger batteries could become faster rather than slower to charge, breaking one of the biggest limitations in modern engineering. While it may take years to reach everyday devices, all I’m going to say is that smartphones were considered science fiction when Star Trek was running as well.