Galaxy Z Fold 8 gives Samsung fans the silicon-carbon battery they've been waiting for
Android Police 2026-07-22 14:52:56
Context: Samsung has unveiled its latest foldable phones, the Galaxy Z Fold 8, Galaxy Z Fold 8 Ultra, and Galaxy Z Flip 8, which feature silicon-carbon batteries, a technology that has been in demand by consumers and is now being adopted by the company to compete with other folding phones. The new battery technology was introduced during a briefing at Galaxy Unpacked 2026 by Samsung's corporate EVP and deputy head of core component technology, BD Yang. This development marks a significant upgrade to Samsung's battery systems.
Key Facts
- The Samsung Galaxy Z Fold 8 Ultra has a battery capacity of 5,000mAh, which was achieved by redesigning the entire system to maintain a slim design while increasing the battery capacity.
- Samsung's adoption of silicon-carbon batteries involved system-level innovation that covers all the components that go into the battery end-to-end, allowing the company to meet its high standards in the industry.
- The silicon-carbon cells in the new Galaxy phones must be carefully managed because their performance and durability can vary depending on cell composition, and Samsung tuned the full cell system to balance usability, long-term battery life, and fast charging.
- Samsung's Super Fast Charging 2.0 technology, which enables 45W fast charging, divides and manages charging across separate paths, reducing electrical stress on each cell, allowing the Z Fold 8 Ultra to reach 67% charge in 30 minutes.
- The new Galaxy phones with silicon-carbon batteries will compete with other folding phones released this year, including the Honor Magic V6, Oppo Find N6, and the Motorola Razr Fold.