飞机上可以携带便携式充电器吗？
您 must bring a portable charger in 您r carry-on. unless you are carrying car batteries or spare lithium batteries, all major battery types are generally allowed on a plane. ...出于安全原因，您必须将电池随身携带。新法规已在大多数航空公司中强制执行。
generally speaking, a good rule of thumb is to divide the mah of a 20000mah power bank 通过 the mah of your device battery. so a 20000mah power bank can “theoretically” charge an iphone 6 plus from 1-100% 6.9 times (20000 / 2915 = 6.9).