Oppo, OnePlus Testing Massive 8,000mAh Battery for Upcoming Smartphones, Tipster Claims

OnePlus and Oppo's next flagship phones could pack a battery with up to 15 percent silicon content, according to a Chinese tipster.

Written by David Delima | Updated: 19 February 2025 14:08 IST

Oppo, OnePlus Testing Massive 8,000mAh Battery for Upcoming Smartphones, Tipster Claims

The successor to the OnePlus 13 (pictured) could arrive with a considerably large battery

Highlights

OnePlus and Oppo are reportedly working on a large smartphone battery
The battery is said to have a capacity of 8,000mAh
It is unclear whether the improved battery will debut on a phone in 2025

Oppo and OnePlus are working on a new battery with an impressive 8,000mAh capacity, according to details shared by a tipster. In a post on Weibo, the Chinese microblogging website, user Digital Chat Station (translated from Chinese) claims that the new battery will support 80W SuperVOOC charging, like the company's existing flagship smartphones. Chinese smartphone makers are racing ahead of their competitors with advanced Silicon Carbon (Si/C) battery technology, and future handsets are expected to arrive with additional improvements.

OnePlus, Oppo Testing Si/C Battery With 80W Charging Support

Ouga Lab, the combined research and development group that comprises Oppo and OnePlus teams, is testing a new battery, according to the post by Digital Chat Station. It is said to be a new silicon-carbon battery that has a capacity of 8,000mAh. It can be charged at around 80W, the tipster claims.

When OnePlus launched the Ace 3 Pro last year, the company claimed that its Si/C battery had the "highest silicon content" at the time — at 6 percent. The new battery being tested by Ouga Lab raises that amount to 15 percent, the tipster claims.

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It's currently unclear whether the 8,000mAh battery will eventually make its way to upcoming Oppo and OnePlus handsets. If the companies decide to introduce the upgraded battery, we can speculate that it might arrive on a future flagship model, like the successors to the OnePlus 13 or the Oppo Find X8 series.

Last December, it was reported that both Xiaomi and OnePlus were working on new smartphones equipped with 7,000mAh batteries that could be launched in 2025. The companies' flagship Xiaomi 15 Pro and OnePlus 13 models are equipped with 6,100mAh and 6,000mAh batteries, respectively.

Similarly, the Chinese versions of the Realme GT 7 Pro and iQOO 13 pack 6,500mAh and 6,100mAh batteries. Chinese smartphone makes are equipping their handsets with silicon-carbon batteries, which offer many benefits over traditional lithium-ion (Li-ion) batteries.

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OnePlus Ace 3 Pro

KEY SPECS
NEWS

Display 6.74-inch

Processor Snapdragon 8 Gen 3

Front Camera 16-megapixel

Rear Camera 50-megapixel + 8-megapixel + 2-megapixel

RAM 12GB

Storage 256GB

Battery Capacity 6100mAh

OS Android 14

Resolution 1,240x2,772 pixels

More OnePlus mobiles OnePlus mobiles price in India

OnePlus 13

REVIEW
KEY SPECS
NEWS

Design
Display
Software
Performance
Battery Life
Camera
Value for Money

Good
Slim IP68 and IP69-rated design
Magnetic accessories
Sharp 120Hz display
Plenty of AI features
Buttery smooth software performance
Great battery life
Fast wired and wireless charging

Bad
AI image editing tools aren't impressive
Accessories need the magnetic case to function

Read detailed OnePlus 13 review

Display 6.82-inch

Front Camera 32-megapixel

Rear Camera 50-megapixel + 50-megapixel + 50-megapixel

RAM 12GB, 16GB, 24GB

Storage 256GB, 512GB, 1TB

Battery Capacity 6000mAh

OS Android 15

Resolution 1440x3168 pixels

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Oppo Find X8

REVIEW
KEY SPECS
NEWS

Design
Display
Software
Performance
Battery Life
Camera
Value for Money

Good
Vibrant display with skinny borders
Slim IP68 & IP69 rated design
Buttery smooth software experience
Good low light video recording

Bad
Plenty of bloatware and preinstalled apps
Poor ultrawide camera performance

Read detailed Oppo Find X8 review

Display 6.59-inch

Processor MediaTek Dimensity 9400

Front Camera 32-megapixel

Rear Camera 50-megapixel + 50-megapixel + 50-megapixel

RAM 12GB, 16GB

Storage 256GB, 512GB

Battery Capacity 5630mAh

OS Android 15

Resolution 1256x2760 pixels

More Oppo mobiles Oppo mobiles price in India

Realme GT 7 Pro

REVIEW
KEY SPECS
NEWS

Design
Display
Software
Performance
Battery Life
Camera
Value for Money

Good
Premium IP69-rated design
Top-notch performance
Great for gaming
Excellent battery life (China model)
120W fast charging
Smooth software

Bad
No wireless charging

Read detailed Realme GT 7 Pro review

Display 6.78-inch

Front Camera 16-megapixel

Rear Camera 50-megapixel + 8-megapixel + 50-megapixel

RAM 12GB, 16GB

Storage 256GB, 512GB

Battery Capacity 5800mAh

OS Android 15

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iQOO 13

REVIEW
KEY SPECS
NEWS

Design
Display
Software
Performance
Battery Life
Camera
Value for Money

Good
Flagship performance
Great display
Excellent battery life
Good design
IP68/IP69 rating
Ultrasonic Fingerprint scanner

Bad
No wireless charging
Low light performance

Read detailed iQOO 13 review

Display 6.82-inch

Front Camera 32-megapixel

Rear Camera 50-megapixel + 50-megapixel + 50-megapixel

RAM 12GB, 16GB

Storage 256GB, 512GB

Battery Capacity 6000mAh

OS Android 15

Resolution 1440x3168 pixels

More iQOO mobiles iQOO mobiles price in India

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Further reading: Oppo, OnePlus, Silicon Carbon Batteries, SiC Batteries

David Delima

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As a writer on technology with Gadgets 360, David Delima is interested in open-source technology, cybersecurity, consumer privacy, and loves to read and write about how the Internet works. David can be contacted via email at DavidD@ndtv.com, on Twitter at @DxDavey, and Mastodon at mstdn.social/@delima. More