Huawei's upcoming Mate 30 and Mate 30 Pro have so far been rumored to sport 25W wireless charging, which would be the fastest yet, as well as 55W wired charging, just to break two records at once. But what about their battery capacities? According to a new post on China's Weibo, the cells you see in the image below are going to be the ones fitted to the Mate 30 and Mate 30 Pro. If this is true - and that's a big "if" - then the Mate 30 should get a 4,200 mAh unit, while the Pro model will have a 4,500 mAh battery keeping its lights running. That would be a 5% increase in capacity...
Source: https://www.gsmarena.com/huawei_mate_30_and_mate_30_pro_battery_capacities_revealed-news-38770.php