Key Takeaways
1. Samsung is testing new silicon-carbon batteries for future smartphones, including a massive 20,000 mAh battery.
2. An 18,000 mAh battery design involves three stacked components, making it suitable for thicker outdoor smartphones.
3. A 12,000 mAh battery option is being considered for regular smartphones, with a thickness of 9.3 mm.
4. Samsung expects the new batteries to last for 1,500 charge cycles before capacity drops to 80%.
5. The 12,000 mAh battery could provide 20 to 25 hours of active use, though these figures are not yet confirmed.
The next model after the Samsung Galaxy S26 Ultra, which starts at $1,300 on Amazon, might come with a much bigger battery. A leaker known as @phonefuturist has shared documents that say Samsung is testing several silicon-carbon batteries. The biggest one in testing is said to be a huge 20,000 mAh battery, but it encountered a problem after just 960 charging cycles.
Testing New Designs
Samsung is also looking into an 18,000 mAh battery that has three stacked components. This battery includes a 6,699 mAh cell (4.2 mm), a 6,000 mAh cell (3.9 mm), and a 5,527 mAh cell (3.28 mm), adding up to a total thickness of 12.8 mm. This design makes it better suited for thicker outdoor smartphones. Meanwhile, a 12,000 mAh battery made of two cells is 9.3 mm thick and may be a more practical choice for regular smartphones.
Future Expectations
Samsung anticipates that this battery will last for 1,500 charge cycles before its capacity decreases to 80%. The 12,000 mAh capacity is expected to allow for 20 to 25 hours of active use on a smartphone. However, as the battery runtime and life-cycle tests are still in progress, these numbers are not confirmed yet. Even though these batteries may be too thick for most of the Samsung Galaxy lineup, the leaked information indicates that Samsung is working on silicon-carbon batteries, hinting that they might provide devices with battery capabilities similar to competing brands from China in the future.
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