With a capacity of 10,000 mAh, the power bank can fully charge an iPhone 15 Pro Max (battery approx. 4,422 mAh) around 2 to 2.2 times, depending on charging losses. The charging time depends on the charging power; with 20 W wireless charging, a full charge of the iPhone takes around 1.5 to 2 hours. The power bank itself charges via USB-C, which can take around 3 to 4 hours depending on the charger.