OnePlus 16 is expected to come with a 9,000mAh battery, according to tipster Digital Chat Station.
This would be the largest battery ever on a numbered-series OnePlus flagship, surpassing previous models.
The phone is said to use Oppo's high-energy battery technology with low-voltage discharge support.
This technology helps accommodate the larger capacity without capacity restrictions.
Performance and charging
The large battery will complement the Snapdragon 8 Elite Gen 6 processor, also tipped for the OnePlus 16.
Previous reports suggest 100W wired charging and 50W wireless charging support.
The device is also expected to feature a 165Hz display refresh rate, with supported games potentially reaching 185Hz.
Other rumored specs include an ultrasonic in-display fingerprint sensor, dual speakers, and an X-axis vibration motor.
The phone is also tipped to have IP68/IP69-rated protection and run Android 17 with ColorOS 17.
Camera system
The camera setup is expected to be a major upgrade, with a 200-megapixel main camera.
It may also include a 50-megapixel 3x periscope telephoto and a 50-megapixel ultrawide camera.
A 50-megapixel autofocus selfie camera is also anticipated.
The OnePlus 16 is expected to launch in China by early October, though OnePlus has not confirmed details.