realme just unveiled its 320W SuperSonic Charge technology at the company’s 828 Fan Festival at realme’s headquarters in Shenzhen, China, as it had promised.
This lets the smartphone with a 4420mAh battery to be fully charged in just 4 minutes and 30 seconds, said the company. It is calling it 4-minute “miracle”.
In only one minute, the 320W charger can power a device to 26% capacity, and it takes less than two minutes to charge a phone to over 50%, said the company.
World’s First Folded Battery and Advanced Safety Solutions
realme said that it has dedicated two years of research to overcome the challenge of a perfect balance between high power, compact size, and guaranteed safety for fast charging.
The 320W SuperSonic Charge leverages pioneering technologies and comprehensively addressed such bottleneck:
World’s First Folded Battery for Smartphones
realme has introduced a folded battery, boasting 4420mAh capacity. Inspired by the mechanics of foldable devices, this quad-cell battery incorporates four individual cells that can be charged simultaneously. Each cell is under 3mm thick, yet provides a 10% increase in capacity over traditional designs.
This marks the world’s first quad-cell smartphone battery, enabling faster charging speeds while maintaining a sleek form factor that seamlessly fits into a smartphone, said the company.
Industry’s first AirGap Voltage Transformer
Addressing users’ safety concerns for high-power charging, realme has introduced the industry’s first “AirGap” Voltage Transformer. This features advanced contact-free electromagnetic conversion for smartphones. In severe faults like circuit breakdowns, it ensures that high voltage remains isolated from the battery, creating a virtually risk-free charging link.
Powered by a suite of patented innovations, the transformer is ultra-compact, measuring smaller than a fingertip. It reduces voltage to just 20V to safeguard the battery while maintaining exceptional conversion efficiency and thermal management, enabling the 320W SuperSonic Charge to achieve an impressive power efficiency of approximately 98%.
Maximum Power Density and Unrivaled Compatibility
The charger of 320W SuperSonic Charge, known as the “Pocket Cannon,” boasts an incredible power density of 3.3W per cubic centimeter. It surpasses the benchmark set by the realme 240W while maintaining a similar size to the 240W charger.
Designed to break down proprietary charging barriers, this supports most advanced mainstream charging protocols—including UFCS (up to 320W), PD, and SuperVOOC for compatibility for all the devices.
With dual USB-C outputs for simultaneous fast charging, it offers 150W for realme phones and 65W for compatible laptops.