This brand new Genuine Lenovo ThinkPad T430s battery which features lithium-ion cells. This battery only fits the T420s and T430s. If you have a T420 or T430, this battery is not the correct battery. (The small "s" is very important on your model number.)

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 5 hours to 5-1/2 hours of run time with this Genuine ThinkPad T430s 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 Lenovo laptop.