This brand new ASUS K55 9 Cell 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. The 9 cell battery will be larger than the original battery which will give you a longer run time. 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 3-5 hours of run time with this computer battery when new, depending on your energy use.

Like all Li-ion primary batteries, your run time will decline over time.

This battery replaces the A32-K55, A33-K55 and A41-K55 laptop batteries.