#silicon-carbon battery

Smartphone battery capacity is rapidly increasing in 2026, with new data showing a significant shift toward larger batteries and emerging technologies. According to a recent industry report, the global average smartphone battery capacity reached 5,291mAh in January 2026, marking a roughly 400mAh increase year-over-year; the biggest jump since late 2021. This growth is largely driven by Chinese smartphone manufacturers, which continue to prioritize battery life as a key selling point. Meanwhile, the HONOR X70 5G stood out with the highest battery capacity in the segment, featuring an 8300mAh battery paired with fast charging support. A key factor behind this trend is the growing adoption of silicon-carbon battery technology, which allows manufacturers to increase battery capacity without significantly increasing device thickness or weight. However, many of these high-capacity devices remain limited to the Chinese market due to global regulations and certification constraints around battery sizes. This has created a noticeable gap, with China reportedly leading by more than 1000mAh in average smartphone battery capacity compared to other regions. Looking ahead, battery capacities are expected to continue increasing, though at a slower pace, as manufacturers balance performance upgrades with rising production costs and supply constraints. Read more in our articles including "Here are the best-selling smartphones with 6000mAh+ batteries" and "Samsung SDI Tests Experimental 20,000mAh Silicon-Carbon Battery for Future Devices".