This brand new Lenovo replacement laptop 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 laptop battery replacement is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty.

You can expect about 2 hours to 4-1/2 hours of run time with this Lenovo battery when new, depending on your energy use.

This battery replaces the Lenovo IdeaPad Y430 Y550 Y550A Y550P series laptop batteries and Type 4189 & type 3241 host more which are listed at the extreme bottom of this web page.