This is a brand new battery for the Lenovo S300 and S400 family of laptops.

Note: This is a different battery than the IdeaPad S10 or S9 battery. Here you can find our IdeaPad S10 S9 battery.

This is the Genuine OEM Lenovo brand IdeaPad S300 series battery. For the cheaper version go to our Xtend brand Lenovo IdeaPad S300 battery.

This brand new Lenovo battery features lithium-ion cells. Li-ion battery technology provides longer run times with less weight. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This IdeaPad battery is 100% compatible with the original battery specifications and is individually tested and backed by a 1 Year warranty.

You can expect about 2 hours to 8-1/2 hours of run time with this Lenovo S300 battery when new, depending on your energy use.