"One of the major battlegrounds in the smartphone world this year was battery. The wider adoption of Si/C (silicon-carbon) batteries this year was particularly noticeable, with some manufacturers cramming capacities of 7,000+ mAh into regular smartphones. In fact our all-time battery life ranking is now dominated by models released this year. Except for the iPhone 16 Plus, the rest were reviewed in 2025."
"A number of handsets broke the 20h Active Use Score barrier, with the OnePlus 15 topping the charts with a 23:07h score. Its close sibling, the Oppo Find X9 Pro, took the second spot, and the iQOO 15 rounded out with third place. One interesting trend is that almost all of the phones on this list are flagship phones, which wasn't always the case."
Si/C (silicon-carbon) batteries were widely adopted in 2025, enabling several manufacturers to fit 7,000+ mAh cells into regular smartphones. The all-time battery life ranking is now dominated by models released in 2025, with the OnePlus 15 topping charts at a 23:07h Active Use Score, followed by the Oppo Find X9 Pro and the iQOO 15. Multiple handsets surpassed the 20h Active Use Score threshold. Most high-performing devices are flagships, reflecting a price premium for Si/C batteries that limits their presence in mid-range and budget phones. Specific strengths vary across call time, browsing, and video playback tests, and larger capacities and wider adoption across price tiers are expected in 2026.
Read at GSMArena.com
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