Global Power Bank Market Size, Share, Growth Analysis By Battery Type (Lithium-Ion, Lithium Polymer), By Distribution Channel (E-Commerce, Brick and Mortar), By Capacity Range (Up to 3,000 mAh, 3,001 mAh-8,000 mAh, 8,001 mAh-20,000 mAh, Above 20,000 mAh), By Energy Source (Electric, Solar), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Statistics, Trends and Forecast 2025-2034