https://www.youtube.com/watch?v=Y46Qof-VHfATL;DRMotorola is making the switch from traditional Lithium-ion batteries to silicon-carbon batteries on its 2026 lineup of flagship foldables.Both the Motorola Razr Ultra 2026 and Razr Fold each pack 5,000mAh and 6,000mAh silicon-carbon batteries, respectively.The technology allowed Motorola to add battery capacity to the Razr Ultra 2026 without touching the dimensions or weight.For better or worse, the major US smartphone brands haven’t adopted silicon-carbon battery technology. Apple, Google, and Samsung keep sticking with traditional Lithium-ion batteries for their reliability, ignoring the benefits of compact and high-capacity silicon-carbon batteries. The upside of using silicon-carbon batteries in smartphones, especially foldables, is that manufacturers can put cells with large capacities in compact form factors. Previously, US shoppers had to look to OnePlus phones if they wanted the innovative silicon-carbon batteries, but Motorola is changing that with its newest Razr Ultra 2026 and Razr Fold models.Motorola’s Razr Ultra 2026 is a flagship flip phone that will be sold at Best Buy, Amazon, and Motorola universally unlocked when it debuts on May 21, 2026. Pre-orders open up a week earlier, and it’ll make the first flip phone with a silicon-carbon battery available to the US market. Motorola’s Razr Ultra 2026 is a prime example of how silicon-carbon batteries can increase capacity without adding thickness or weight.