http://www.techradar.com/news/huawei-mate-10-poster-reveals-a-big-battery-and-a-massive-screen

Despite the Huawei Mate 10 likely launching on October 16 we still haven’t heard that many rumors about it, but a promotional poster that was seemingly spotted in China has filled in some of the gaps.

Spotted by @Daimoi on Weibo (a Chinese microblogging site) the poster claims that the Huawei Mate 10 will have a 4,000mAh battery, which is the same size as the Huawei Mate 9.