1. Mi 20000mAH Li-Polymer Power Bank 2i w e are calling this as the top one because of its high capacity battery, dual USB output, and two-way fast charging. This is the best model from the Xiomi that confers to manufacture the world’s best portable chargers in India. Features 20000mAH lithium-polymer battery Quick Charge 3.0 Dual USB modes Comes with 6 months warranty Advantage -: Can charge two devices together Works at lower power for devices like band, and bluetooth Quick charge Safety wise excellent Compatible with all the devices D isadvantage-: Slightly heavy 2. Mi 10000mAH Li-Polymer Power Bank 2i This is another hotselling powerbank in India. Mi 10000mah has an innovative design, powerful battery, and high-output capacity. Features 10000mAH lithium-polymer battery Quick Charge 2.0 Dual USB modes Nine-layers circuit chip protection Advantage...