电池也很强劲，待机9个小时，使用4个小时应该没有问题，总之，这个价格能买到这种品质的机子，感觉非常开心，其他功能等以后发现了再补充。
The battery is powerful, works 9 nines between charges, and using it for 4 hours is no problem at all; in all, I feel happy to buy such a quality machine at this price, and I will add review of other functions later.