随着信息科技的发展,手机已经成为我们日常生活中不可或缺的部分。如今的手机功能百出,除了具有一般的通话和发短信功能外,有的手机还具有听音乐、上网、看电影、照相等附加功能,让人应接不暇。然而,移动电话发明的初衷就是为了方便人们外出使用,而要保证在外出时手机功能不受阻,最重要的一点就是保证供给手机能量的电池电量充沛。 With the development of information technology, mobile phones have become an indispensable part of our daily life. Today’s mobile phone features a full range, in addition to having a general call and text messaging capabilities, some mobile phones also have to listen to music, Internet, movies, photos and other additional features, people overwhelmed. However, the original intention of mobile phones was invented to facilitate people to go out to use, but to ensure that when the phone is not blocked when going out, the most important thing is to ensure that the supply of mobile phone battery energy sufficient.