
Introduction Imagine a smartphone that powers through days of heavy use—streaming, gaming, and navigation—without needing a recharge, a dream that is fast becoming reality. Chinese smartphone giants, Xiaomi’s sub-brand Redmi and Honor, are competing to integrate unprecedented battery capacities into their devices, ranging from 8,000mAh to an astonishing 10,000mAh. This trend highlights a pivotal shift in the industry, where battery










