This brand new MSI CR640 CR640X CR640DX CR640MX Laptop Battery replacement. This 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 3-1/2 hours of run time with this computer battery when new, depending on your energy use.

This battery replaces the MSI CR640 CR640X CR640DX CR640MX Laptop Battery series of batteries and a host more which are listed at the extreme bottom of this web page.