the battery lasts about a week, even when you have 20% left it says that you have 8 hours left, it charge very fast like 2 hours, I have no complaints, it works very fast, the only thing that is theres no information of the maximum capacity to insert a sd memory card, neither in the web of huawei, nor in the manual, nor what kind of memory is recommended, such as class 1 ....., and the other disadvantage is that it has no input for a usb, but in general has a low price for the quality of the product, now I hope that after this recommendation I do not start to fail, sometimes when you recommend, you lose your recommendation.