Redmi Confirms 300W Immortal Second Charger, Claims to Fully Charge Device in 5 Minutes

Redmi’s new fast charging technology is a modification of the one on Redmi Note 12 Pro+.

Advertisement
Written by Sucharita Ganguly, Edited by Manas Mitul | Updated: 28 February 2023 14:17 IST
Highlights
  • The metrics provided are for 4,100mAh batteries
  • It claims to charge up to 10 percent in 43 seconds
  • It can charge 50 percent in two minutes and 13 seconds

Redmi Note 12 Pro+ 5G launched in India in January

Photo Credit: Xiaomi

Redmi has officially confirmed a new fast charging technology, namely the 300W Immortal Second Charger, which claims to fully charge a smartphone in five minutes. The Chinese phone manufacturing company has yet to confirm the technical aspects of the charging technology. Fast charging is an extremely popular feature in smartphones these days that allows users to charge their devices much quicker than it would normally take. Not all products or brands use a similar type of fast charging, and not all chargers assist all the different standards.

According to Redmi's translated Weibo post, the new charging technology is named "300W Immortal Second Charger," which indicates that it could be an alternative charging technology. Further information about the charging technology will be revealed in time by the company.

Advertisement

The newly confirmed charging technology claims to be able to charge a 4,100mAh battery to 10 percent in 43 seconds, 50 percent in two minutes and 13 seconds, and 100 percent in five minutes. The company also noted that this is not a completely new technology, but a modification of the one present on a Redmi Note 12 Pro+ variant.

“This is the 300W charging test of the Note 12 Pro+ magic version,” the post reads.

The Redmi Note 12 Discovery Edition, available only in China, is the company's fastest charging smartphone to date. It supports 210W charging and claims to charge the device completely in about 10 minutes.

Advertisement

Among competitors, the Realme GT Neo 5 was announced as the world's first smartphone with 240W charging earlier this year. It claims to be the fastest charging speed that a USB-C port can support, charging the 4,600mAh battery-supported phone completely in under 10 minutes. The device ships with a 20V/12A adapter.

The Realme GT Neo 5 also launched with a 150W fast charging variant with a 5,000mAh battery, which comes with a 20V/8A adapter in the box.

Advertisement


How does the Redmi 12 Pro+ fare against its competitor, the Realme 10 Pro+ 5G? Is it a worthy successor to the Redmi Note 11 Pro+ 5G? We discuss this and more on Orbital, the Gadgets 360 podcast. Orbital is available on Spotify, Gaana, JioSaavn, Google Podcasts, Apple Podcasts, Amazon Music and wherever you get your podcasts.
Affiliate links may be automatically generated - see our ethics statement for details.
 
REVIEW
  • Design
  • Display
  • Software
  • Performance
  • Battery Life
  • Camera
  • Value for Money
  • Good
  • Excellent camera performance
  • Premium design, IP53 rating
  • Quality multimedia experience
  • Super-fast charging, good battery life
  • Feature-rich software with minimal bloatware
  • Capable overall performance
  • Bad
  • Much more expensive than its predecessor
  • Does not ship with Android 13
  • Haptics could have been better
  • Ultra-wide camera performance needs improvement
 
KEY SPECS
Display 6.67-inch
Front Camera 16-megapixel
Rear Camera 200-megapixel + 8-megapixel + 2-megapixel
RAM 8GB, 12GB
Storage 256GB
Battery Capacity 4980mAh
OS Android 12
Resolution 1080x2000 pixels
NEWS

Get your daily dose of tech news, reviews, and insights, in under 80 characters on Gadgets 360 Turbo. Connect with fellow tech lovers on our Forum. Follow us on X, Facebook, WhatsApp, Threads and Google News for instant updates. Catch all the action on our YouTube channel.

Advertisement
Popular Mobile Brands
  1. Xiaomi 17 Max Debuts With 8,000mAh Battery, Leica-Tuned Cameras: See Price
  2. Gemini Offers Agentic Design Creation With New Adobe and Canva Connectors
  3. Apple's Big Health Move in India: Watch, AirPods Pro Get New Features
  4. Android 17 Will Arrive With This Apple Continuity-Inspired Feature
  5. Vivo X500 Pro Max Might Launch This Year With an 8,000mAh Battery
  6. Oppo Find X10 Series Tipped to Launch With Notable Battery Upgrades
  1. Scientists Discover New Fuel-Saving Route to the Moon
  2. Madhu Vidhu OTT Release: Where to Watch, Plot, Cast, IMDb Rating, and More
  3. Maa Behen OTT Release Revealed: When and Where to Watch it Online?
  4. LOL: Last One Laughing Germany Season 7 Out on OTT: Know Where to Watch it Online
  5. Warrant: From the World of Vilangu OTT Release Date: When and Where to Watch it Online?
  6. Xiaomi Clip Open-Ear Earbuds Launched With LHDC 5.0 Audio, Up to 38 Hours Total Battery Life: Price, Specifications
  7. Sathi Leelavathi Now Streaming on SunNXT: Everything You Need to Know About Plot, Cast, and More
  8. Xiaomi Smart Band 10 Pro Launched With 1.74-Inch AMOLED Screen, Up to 21 Days Battery Life: Price, Features
  9. Honor Developing Wide-Foldable Phone With Snapdragon 8 Elite Gen 6 SoC, Tipster Claims
  10. Google’s Gemini Offers Agentic Design Creation With New Adobe and Canva Connectors
Download Our Apps
Available in Hindi
© Copyright Red Pixels Ventures Limited 2026. All rights reserved.