The second generation of Lenovo's Miix 8 inch tablet was released in October 2013.
It is powered by a 1.8 GHz Intel Atom Z3740 Processor, 2 GB of RAM, 32, 64 or 128 GB of storage, 2x2 802.11a/n wireless, bluetooth 4.0, and optional WWAN in certain models.
Turning off Wifi, bluetooth, and cellular data can help. This can usually be done by placing the device in airplane mode. Reducing the screen brightness and closing unused applications can also help. Otherwise using the device less will increase standby battery life.