"Portable Battery Pack Market - Industry Trends and Forecast to 2029 Global Portable Battery Pack Market, By Technology (Li-Ion, Nickel Metal, Li-Polymer and Nickel Cadmium Technologies), Capacity Range (1000mAh to 2500mAh, 2510mAh to 5000mAh, 5010mAh to 7500mAh, 7510mAh to 10, 000mAh and Above 10, 000mAh), End User (Smart Phones, Tablets, Portable Media Players and Others), Country (U.S.,...