Intel Summary: Internal Samsung SDI documents confirm 12,000mAh-20,000mAh Si-C cell testing. While the S26 Ultra remains conservative, the shift to Silicon-Carbon anodes is the confirmed target for 2027. The Longevity Bottleneck (960 Cycles) The S27 Outlook The Battery Breakthrough Nobody's Talking About Everyone's debating whether the S26 Ultra should have pushed past 5,000mAh. That's the wrong conversation. The number on the spec sheet was never the problem — the chemistry was. Samsung has been running the same graphite anode architecture for years. It works. It's safe. It's boring. And it's been quietly holding Samsung back while Xiaomi, OnePlus, and vivo have spent the last two years shipping Silicon-Carbon batteries in consumer hardware without the world ending. Here's why that matters. Silicon-Carbon anodes can store up to ten times more energy than traditional graphite. That's not a marginal improvement that's a different category of battery ...