Remember that a few years ago, mobile PCS with mobility and relatively low prices, really caught fire, a lot of "punching notebook, kicking desktop" trend. However, only a year or so, with the continuous price reduction of notebooks, mobile PCS quickly fell silent, and now even the 2-hand market is difficult to find its trace. Compare mobile PC and notebook, its configuration can be done almost the same, and the only difference between the two is the battery. A small battery, so that the notebook development prospects are unlimited; Without a small battery, mobile PCS are finally coming to an end. It can be seen that the importance of batteries has been extraordinary.