This brand new Genuine Panasonic ToughBook CF-VZSU65AU laptop battery. It 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 1 year warranty.
You can expect about 3 - 4 hours of run time with this CF-VZSU65AU battery when new, depending on your energy use.
This battery replaces the Panasonic series laptop batteries and a host more which are listed at the extreme bottom of this web page.