Huawei portable WiFi3 can be used while charging no problem, this portable WiFi is very easy to use, in fact, the practical is that you a certain operator operator provides you with a traffic card, through this WiFi at any time you can convert the signal of the mobile operator into a WiFi signal for your mobile device. The speed is very fast, the flow is very large, and the use is very convenient.
Yes, it will not need to be filled again. It will not affect the use