Flextail Zero Power 10000 Power Bank

The Flextail Zero Power 10000 is a 10,000 mAh power bank in a carbon-fibre shell, weighing 145 g — light for its capacity thanks to the carbon build rather than a plastic housing. It charges and outputs over USB-C, supports fast charging up to 22.5 W, and carries an IPX4 rating, so it handles splashes and light rain but isn't built for submersion. A 10% reserve is set aside for emergencies, meaning the bank stops discharging before it's fully flat, keeping a small buffer for when you actually need it rather than letting the last bit drain on routine top-ups. Between the weight and the 22.5 W output, it suits ultralight trekkers who want to recharge a phone or GPS unit multiple times on a multi-day trip without hauling a heavier standard power bank.