— Xiaomi India (@XiaomiIndia) March 8, 2018 The Mi Power Bank 2i comes with two USB ports, which provides two way quick charging. The Mi Power Bank 2i comes with nine layers of circuit protection to protect the devices and the power bank itself from shocks, incorrect insertion, input overvoltage protection, output overcurrent, PTC protective circuit and more. With the new Mi Power Bank 2i, you can also charge low power gadgets like smartwatches, smart bands or Bluetooth headphones without damaging their battery. You just need to enter the two-hour low power charging mode by double clicking the power button. The 10,000 capacity mAh power bank comes with high-density lithium polymer battery which provides approximately 90 percent of conversion rate. The actual output of the power bank is 6500 mAh and the outer shell is made of anodized aluminum. The power bank is only 14.2 mm thin and it weighs only 240 grams.