No charger, no problem: The best ways to charge your phone away from an outlet

A 5,000-10,000 mAh power bank such as the Anker MagGo (10 k mAh) charges an iPhone 15 to 70% in under an hour and displays remaining charge on an LCD. The Anker Nano (5 k mAh) includes a built-in USB-C port. Larger units like the Belkin BoostCharge 20 K (20 k mAh) or the 65 W Nimble Champ Pro can fully charge flagship phones in about an hour. Wireless chargers serve as a backup when a power bank is unavailable.