World's fastest charger can fully power up your smartphone in under 5 minutes

Scientists have revealed the fastest battery-charging Technology in the world for smartphones, which can fully charge a smartphone in less than 5 minutes.

The 320-watt fast-charging technology, dubbed "320W SuperSonic Charge," was developed by Chinese consumer electronics company Realme and beats out previous chargers. Smartphone maker Redmi, a Xiaomi subsidiary, had previously unveiled a 300 W technology to charge up a device in 4 minutes and 55 seconds in February 2023, but no manufacturer has since been able to go beyond this — until now.

Realme representatives demonstrated the new technology at the Realme 828 Fanfest event in Shenzhen, China on Aug. 14.

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The record-breaking fast-charging capability can power up a smartphone's battery to 26% in 1 minute and to 50% in less than 2 minutes. It takes 4 minutes and 30 seconds to fully charge a smartphone, according to GSMArena.

Unlike conventional charging, in which power is transferred to a single battery cell or to multiple cells in sequence, fast-charging technology simultaneously charges multiple battery cells in a single battery.

In the demonstration, Realme representatives rapidly charged a folded battery design with a 4,420 milliampere-hour capacity that stacked four cells on top of each other. This design provides a 10% higher capacity than conventional designs, company representatives said.