Growth in battery capacity seems to have stalled but one thing keeps growing - the rate at which batteries charge. Qualcomm is rumored to introduce Quick Charge 4.0 soon which will push a whopping 28W of power to supported phones. For comparison, current Quick Charge 3.0 tops out at 18W, Huawei' Super Charge is faster at 22.5W, Oppo's VOOC is at 20W. Google is reportedly considering pushing manufacturers to adopt the Power Delivery standard for phones that use USB Type-C - Google's own Pixel phones support it, but they top out at 18W (technically, the standard can do up to 100W, but...
Source: http://www.gsmarena.com/quick_charge_40_may_provide_up_to_28w_of_power_smartly-news-21560.php
