I was at a busy airport recently and my flight was delayed by several hours thanks to an electrical storm. The dreaded low battery warning flashed on my phone screen. It was a round trip in one day, so I didn’t bring a charger and then finding a PowerPoint was going to be difficult anyway. Thanks to Portable power banks I was saved, these devices have been our trusty sidekicks for a few years now, but the truth is most of them can be heavy, awkward, and sometimes lose their capacity faster than we’d like.
Well, Belkin is stepping up with a fresh solution. The consumer electronics brand has just announced its new UltraCharge Pro line-up powered by BoostSolid Cell technology. Making its debut at IFA 2026, these new power banks feature semi-solid-state batteries. It is a major leap forward in portable charging, promising longer battery life, improved durability, and seriously slim designs.
What is Semi-Solid-State Battery Technology?
If you are wondering what “semi-solid-state” actually means, you are not alone. Most of the power banks we use today rely on conventional liquid-cell batteries. While effective, they have limitations when it comes to physical size and heat management.
Belkin’s BoostSolid Cell technology introduces a gel-like layer alongside the standard liquid electrolyte. This shift in battery architecture allows for a much more compact design without sacrificing capacity. More importantly, it is engineered to last up to three times longer than traditional power banks. That means fewer replacements and years of dependable everyday use.
Safety is also a huge focus here. The new tech helps reduce the risks of swelling and overheating. Belkin has included dual temperature sensors that check the battery every 250 milliseconds. If the temperature pushes past safe limits (between 0 and 40 degrees Celsius), the power cuts off automatically. Fully TSA-certified and rigorously tested for drops and impacts, it is built to survive real-world travel.
The UltraCharge Pro 5K: Pocket-Sized Power
For those who hate carrying bulky accessories, the UltraCharge Pro Slim Magnetic Power Bank 5K (BPD024) is the clear standout. Measuring just 8.8 millimetres thick, it is about the size of a standard credit card and 40 percent slimmer than comparable 5K chargers.
It delivers 5,000mAh of power and features Qi2-certified 15W magnetic wireless charging, meaning you can snap it to the back of your phone and go cable-free. If you prefer to plug in, the USB-C port offers fast wired charging. Encased in a premium metal body with a soft-touch finish, it looks highly premium. Expect this model to launch in January 2027 for $119.95 AUD ($129.95 NZD).
The UltraCharge Pro 10K: High-Speed Charging
If you carry multiple devices, like a tablet, laptop, and smartphone or even a game device, the UltraCharge Pro 10K (BPB044) is built for you. Despite packing a 10,000mAh capacity, it features a 27 percent smaller footprint than older designs.
This model is all about speed, offering up to 60W USB-C Power Delivery. That is enough to charge a compatible smartphone to 50 percent in just 24 minutes. It also includes a built-in smart display, giving you real-time updates on battery status, power output, and internal temperatures. It hits shelves in January 2027 for $149.95 AUD ($159.95 NZD).
With 100 percent plastic-free packaging and robust warranties, Belkin is making a strong case for upgrading your everyday carry.
The future of portable power is looking slimmer, faster, and significantly more reliable.
Available January 2027 at belkin.com/au, Amazon, and selected retailers
