Portable Battery Pack Market Size and Forecast (2022 - 2031): Global and Regional Share, Trends, and Growth Opportunity Analysis by Battery Type (Lithium-Ion, Lithium-Polymer, Nickel-Metal Hydride, and Others), by Capacity (Below 5,000 mAh, 5,000 mAh to 10,000 mAh, and Above 10,000 mAh), by Application (Consumer Electronics, Automotive, Healthcare, Outdoor Activities, and Others), and by Charging Technology (Wired Charging, Wireless Charging, and Fast Charging), and by Region (North America, Europe, Asia-Pacific, Latin America, and Middle East & Africa)