Power Bank Market by Product type (Portable Power Banks, Phone Charging Cases, and Solar Power Banks); By Battery Type (Lithium-Ion and Lithium Polymer); By Power Rating (Up to 5,000 mAh, 5,001 mAh – 12,000 mAh, 12,001 mAh – 20,000 mAh, and Above 20,000 mAh); By Port Type (Standard, Type C, and DC Power Jack); By Charging Source (Electric, Solar, and Hybrid); By Application (Smartphone, Tablets/Laptops, PCs, Camera, and Other Applications); By Distribution Channel (Online Distribution Channel, a