When heading out for a journey, nobody wants to be disappointed by the lack of power. The PowerMaster 20000mAh Portable Charger is just made for you, which can charge 3 USB-powered devices with total 5.8A output current simultaneously and offers the optimal charge solution for mobile devices because of the advantage of detecting the internal charge management chip and intelligently adjusting the best output power for match the unique charging needs of all your USB-powered devices. In addition, it adopts aluminum alloy shell with curved edge design, lightweight, compact and durable, great feel in your hand or fit in your bag with your smartphone. It is a convenient and reliable power solution for your daily life or travel. Features : TREMENDOUS BATTERY CAPACITY: 20000mAh portable charger fully charges iPhone 11 about 4 times, iPhone X about 5 times, Samsung S10 about 3 times and iPad Air more than 1 time. Enough to keep power-hungry devices topped up for days.3-PORTS MEETS ALL CHARGING NEEDS: 3 USB ports with a powerful total 5.8A output current (Max 2.4A output for per port to fast charge), you can charge your phone and tablet simultaneously. Keep all of your devices fully powered on-the-go.HIGH-SPEED RECHARGING: Equipped 2 input microUSB port, easily and fast recharge the power bank via one microUSB solely (5V / 2A Input: 18-hour charge time) or two microUSB port simultaneously (5V/4A Total Input: About 9-hour charge time). Also can recharge it via wall outlet charger (AC 110-220V: About 9-hour charge time).TRUSTED SAFETY & PROTECTIONS: Portable Charger can automatically identify and distribute the optimal charging current for your device and maximize charging speed safely. Moreover, its advanced circuitry and built-in safeguards to protect your devices against overload, overheating, and overcharging.WELL-DESIGNED: The portable chargers ergonomic curved edge offers a comfortable grip and a stylish look, while the clear LED indicator clearly displays remaining power. All 3 Charging Ports are located together for convenience use and to minimize wire tangling.