Belkin UltraCharge Pro 25K: a 140W laptop power bank with a built-in cable
If you rely on a MacBook Pro or any USB-C laptop away from a desk, Belkin has a new power bank worth knowing about. The UltraCharge Pro Laptop Power Bank 25K delivers up to 140W via Power Delivery 3.1 — enough to charge a 14-inch MacBook Pro to 50% in around 28 minutes. It's priced at £99.99 on Belkin UK, though it's currently out of stock; the US version sits at $84.99 on Belkin US.
The hardware
The 25,000 mAh (92.5 Wh) pack has three ports: the integrated USB-C cable, a second USB-C port, and a USB-A port rated at 18W for smaller gear like earbuds or a phone. Run all three at once and total output hits 158W. Charging the bank itself tops out at 90W input, so it won't sit dead overnight.
The built-in cable is the headline feature. Belkin rates it for over 3,500 bends and 10,000 connection cycles — the weak point of every other integrated-cable bank on the market. An LED display on the body shows exact battery percentage and current operating status, which removes the guesswork of multi-light indicator systems.
Travel-ready capacity
The 92.5 Wh capacity is deliberate. Most airlines — including British Airways, easyJet, Delta, and United — allow lithium batteries up to 100 Wh in carry-on luggage without special permits. This bank sits just under that limit, meaning you can board with full capacity and no paperwork.
The casing uses fire-resistant materials, and the internal protection system monitors cell temperature, over-voltage, and over-current. Given that 140W passes through a device you're carrying in a bag, that's a reasonable baseline rather than a selling point.
Worth it?
At $84.99 in the US, the UltraCharge Pro 25K undercuts many 100W+ laptop power banks while adding the convenience of an integrated cable. The UK price of £99.99 is harder to evaluate right now given the out-of-stock status, but it remains competitive against comparable Anker and Ugreen options. If the cable durability claims hold up in practice, this becomes one of the more practical travel chargers for laptop users on either side of the Atlantic.
