Imagine the sinking feeling: your phone flashes the dreaded low battery warning, and you’re miles from an outlet. It’s a modern anxiety we all know too well. But what if a solution was small enough to live on your keyring?
The Rolling Square Tau 2 isn’t just another power bank; it’s a marvel of miniaturization. Thanks to advancements in Gallium Nitride (GaN) technology, serious power is now packed into incredibly small devices. This tiny powerhouse is smaller than an AirPods case, yet holds a surprising amount of potential.
Don’t let its size fool you. In testing, the Tau 2 delivered over 30% charge to an iPhone 16 Pro. That’s enough to pull you back from the brink, offering a crucial lifeline when you need it most. It’s a difference between a frantic search for an outlet and a relaxed continuation of your day.
The brilliance doesn’t stop at its size. Forget fumbling with separate cables. The Tau 2 cleverly integrates both USB-C and Lightning cables directly into its design. A surprising addition? The Lightning cable also functions as a MicroUSB, offering compatibility with older devices you might still rely on.
Even better, it supports pass-through charging. This means you can charge the Tau 2 and your iPhone simultaneously using a single USB-C connection. It can even handle charging two devices at once, maximizing its utility in a pinch.
Rolling Square understands the biggest challenge with backup power: remembering to charge it. They’ve addressed this with a unique Charging Dock. This dock, secured with adhesive, can be mounted to a wall or desk, creating a dedicated charging spot right where you’ll see it.
You can even connect it directly to your MacBook’s Thunderbolt port for convenient charging on the go. The hook design allows you to attach it to your keys, or integrate it into your existing keyring setup. It’s about making emergency power effortlessly accessible.
Beyond charging, the Tau 2 incorporates NFC technology for Lost Mode functionality and potential Digital ID sharing. While a direct integration with Apple’s FindMy network would be a welcome addition, the current features add another layer of security and convenience.
The Tau 2 isn’t about fully recharging your phone; it’s about providing a vital boost when you’re stranded. It’s a remarkably affordable solution, offering peace of mind in a package that’s barely noticeable in your pocket or on your keyring. It’s a small device with the potential to save a big day.
