# Insider: unnamed maker starts mass production of 11,970 mAh phone battery

- Published: 2026-11-10 14:04 UTC
- Section: Power & Energy › Batteries
- Tags: 11,970 mAh battery, 12,000 mAh smartphone battery, Vivo battery, silicon-carbon battery, mass production battery, Digital Chat Station, single-cell battery, smartphone battery capacity
- URL: https://realtech.media/news/rt-9f5e551075ff14ce36119be0_insider_unnamed_maker/

**According to Digital Chat Station, a battery with a nominal capacity of 11,970 mAh, the 12,000 mAh class, is already in mass production; the manufacturer is not confirmed.**

![Insider: unnamed maker starts mass production of 11,970 mAh phone battery](https://realtech.media/media/2026/11/10fecc60da4399d1.jpg)
*ixbt.com*

According to the Chinese insider Digital Chat Station, as reported by ixbt.com, an unnamed manufacturer has already set up mass production of a battery with a nominal capacity of 11,970 mAh [1]. This corresponds to the 12,000 mAh class. The insider did not name the brand, but the colour scheme of the "blue" phone maker points to Vivo, he said [1].

Vivo is also reportedly developing an even higher-capacity battery for a future device with a larger display [1]. This may be a further development of silicon-carbon technology, which raises energy storage density without a proportional increase in cell size.

In February, Digital Chat Station reported that Vivo was testing a smartphone with a single-cell silicon battery of typical capacity from 11,000 to 12,000 mAh. At that time the development was at the testing stage [1].

## Sources

1. [ixbt.com](https://www.ixbt.com/news/2026/11/10/akkumuliatory-dlia-smartfonov-na-12-000-mac-zapushheny-v-seriinoe-proizvodstvo.html)

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Source: RealTech, realtech.media — https://realtech.media/news/rt-9f5e551075ff14ce36119be0_insider_unnamed_maker/