This brand new Acer Aspire One 721 battery features high quality lithium-ion cells. Li-ion battery technology provides longer run times with less weight.

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 2-1/2 hours of run time with this Aspire 721 battery when new, depending on your energy use.

This battery replaces the Acer Aspire 721 series of laptops and a host more which are listed at the extreme bottom of this web page.