It appears OnePlus may be preparing to launch yet another smartphone featuring a 9,000mAh battery. The news comes just a day after the company introduced the OnePlus Turbo 6 and Turbo 6V in China. According to tipster Digital Chat Station, a high-end performance phone with a MediaTek Dimensity 9500 SoC is currently in testing. It is expected to be a new OnePlus device, perhaps the rumored Ace 6 Ultra. The device is said to feature a flat 6.78-inch LTPS display with a 1.5K resolution and a 165Hz...