Vivo testing a 12000mAh battery for upcoming smartphone

Vivo may have an 11,970mAh smartphone battery in mass production, according to a new leak. Weibo tipster Digital Chat Station said today that the “blue” manufacturer is keeping up with the growing trend of larger phone batteries. He did not mention the brand directly, but the color reference points to Vivo.

The tipster claims the largest battery currently in mass production has a rated capacity of 11,970mAh, putting it in the 12,000mAh class. He did not reveal which phone will use the cell, but added that Vivo has an even bigger battery planned for a future device with a larger display.

The claim follows an earlier post from Digital Chat Station in February, when he said Vivo was testing a phone with a single-cell silicon battery with a typical capacity between 11,000mAh and 12,000mAh. That device was still in testing at the time. The latest post suggests the battery may have since progressed to mass production.

Vivo foldable and iQOO phone plans

The tipster also answered a few questions from readers about Vivo’s upcoming devices. One asked when the company’s next foldable would arrive next year and whether it would use a flagship 2nm processor.

Digital Chat Station says the 2nm chip would not be a problem, but Vivo still needs to settle on the phone’s form factor. The company is reportedly considering either a large foldable or a wider design.

The possibility of a wider phone is not entirely new. Digital Chat Station previously claimed that Vivo could launch a wide-screen candybar flagship in 2027.

Another reader asked about a flagship phone with a mid-sized display, seemingly referring to iQOO. The tipster replied, “I guess so,” although the brief response does not confirm any specific device or launch plans.

There is also a separate report claiming iQOO is developing a 7-inch mid-range phone with a battery exceeding 10,000mAh. The device is tentatively scheduled to arrive in China around mid-2027.