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 3.5 - 4.5 hours of run time with this computer battery when new, depending on your energy use. If you are looking for even longer battery run times, check out our extended run battery for your HP laptop (our LEN-X300XT).

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

This battery replaces the Lenovo ThinkPad X300 series laptop batteries and a host more which are listed at the extreme bottom of this web page.