[Upgraded] POWERADD Pilot X7 20000mAh Power Bank Dual USB Port External Battery Pack LED Flashlight Portable Charger Compatible for iPhone Xs Max, 8, 7 Plus, iPad Pro, Mini, Galaxy S9 More - Blue Huge Capacity 20000mAh - Add 8 solid charges to an iPhone 8, or about 4.5 charges to a iPhone X, or 4 charges to a Samsung Galaxy S8. Smart USB Chargint Tech - Auto detects your device to deliver its fastest possible charge speed with 3.4A(max) output, we strongly suggest you to use a 2amp adapter to charge the Pilot X7 as the 5V/2A input. Upgraded Size and Performance - Built-in Li-polymer battery cell, thus the new version Pilot X7 is much more lightweight and safe than previous version ones, supports more than 500 charge cycles as well. Safety Guarantee - Built-in safeguards protect your devices against excessive current, overheating, overcharging and more. Ultra-long Product Warranty - POWERADD Offers 30-Day money back within 24-Month limited product warranty, technical and friendly customer support are available lifetime.