Voltme Hypercore 10K power bank ZDNET's key takeaways Voltme's Hypercore 10K power bank is available on Amazon for $23.
It's very compact and easy to carry, with both USB-C and USB-A ports to charge two devices simultaneously.
Its small but chunky, as some might prefer a flatter charger. $22.99 at Amazon
Power banks are a tradeoff: too big and they're heavy and awkward to carry, too small and they're pretty useless because there's not enough charge power. I've found that the 10,000mAh mark is the sweet spot in terms of weight for general pocket carry.
But even at that size, design plays a big part. A blocky, angular power bank just doesn't sit well in a pocket or bag. Occasionally I come across a power bank that has the right blend of power capacity, features, design, and price.
Also: The best power banks you can buy in 2025
The latest power bank to tick these boxes has been the Voltme Hypercore 10K Pro.
I think the best way to describe the look of the Hypercore 10K Pro is "bar of soap, but without the slipperiness." The casing is a combination of soft grippy polymer and tough plastic. The plastic is also made extra grippy thanks to the company name and debossed (cut into the material) into the side.
The corners are also rounded and soft, so there's nothing on the power bank to dig into your skin or burst a hole in the side of a backpack -- something I've had happen on a multi-day hike. That expensive, waterproof power bank now lies somewhere in the Brecon Beacon hills in South Wales.
Just keep in mind that it's a little chunkier than some of the larger (and flatter) power banks that can sit flush with your phone.
... continue reading