Why is the ThinkPad x230s equipped with dual batteries?

The ThinkPad x230s is equipped with two 3-cell batteries.

The system can directly manage two batteries

Q: See the ThinkPad x230s with two 3-cell batteries in the parameters, what's the use of dual batteries?

A: ThinkPad X230s is Lenovo's newest 12.5-inch ultra-thin notebook, optimized on the basis of X230, and as a subsequent version of X230, the biggest change in the ThinkPad X230s is on this "s", which uses carbon fiber as the top cover, Fuselage thickness from 26.6mm to 17.7mm, weight from 1.54Kg (with 6-cell batteries) reduced to 1.28KG (with dual 3-cell batteries). x230s Although the fuselage has become more frivolous, but the interface is still complete, not only in the fuselage has a USB interface, but also has a standard VGA interface, the standard network interface, in addition to the Mini DisplayPort interface and 4in1 card reader slots, and more than X230.

X230s in order to ensure long life at the same time, the use of dual 3-cell design, in the system can directly see the existence of two batteries, this design does not have other great significance, but for the maintenance of the ability is a more effective way. From the disassembly diagram we can also see that the ThinkPad x230s is equipped with two 3-cell batteries, the specifications are 11.1V 24Wh, equipped with a battery will be thicker, the use of dual-battery can maximize the space inside the fuselage, This is why x230s can be lightweight and can be equipped with dual batteries and has a rich interface.