Anker Portable Charger, PowerCore Essential 20000mAh Power Bank with PowerIQ Technology and USB-C (Input Only), High-Capacity External Battery Pack Compatible with iPhone, Samsung, iPad, and More. Ultra-High Capacity: The massive 20,000mAh capacity provides more than 5 charges for iPhone XS, almost 5 full charges for Galaxy S10, more than 3 and a half charges for Huawei P30, and over 2 and a half charges for iPad mini 5. Advanced Charging Technology: Anker's exclusive PowerIQ and VoltageBoost technology combine to deliver an optimized charge to your devices, while the trickle-charging mode is the best way to charge low-power accessories. Simultaneous Charging: Twin USB ports allow you to charge two devices at the same time. The USB C port cannot charge other devices. Certified Safe: Anker's MultiProtect safety system ensures complete protection for you and your devices. What You Get: Anker PowerCore Essential 20000 power bank, Micro USB cable, travel pouch, welcome guide, our worry-free 18-month warranty, and friendly customer service. (USB-C cable, Lightning cable, and wall charger not included) Power for Days 20,000mAh is enough power to keep your phone, tablet, and other devices charged for days. You'll wonder how you ever spent so much time plugged into the wall. Superior Safety Anker's MultiProtect safety system ensures complete protection for you and your devices. Premium Design With a sleek matte exterior and cool-blue LED light-wheel to display battery level, PowerCore Essential 20000 is premium both inside and out. Worry-Free Warranty At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support. Trickle-Charging Mode Trickle charging is designed to provide optimized charging to low-power devices such as earphones, Bluetooth speakers, and other accessories. To activate, press the power button twice or press and hold for 2 seconds until the LED indicator turns green. Compatibility: Compatible with iPhone 12 / 11 / XS / XS Max / XR, Android smartphones and tablets (including the Nexus 7), and other USB devices. Note: USB-C cable, Lightning cable, and AC adapter not included. There are 4 LED indicators in total. When the trickle-charging mode is on, the last LED light will remain green, regardless of battery status.The two input ports may not be used at the same time. The USB-C input port has no output function.PowerCore Essential 20000 does not support laptop charging. To charge laptops you will need a portable charger with at least a 30W output.