This brand new battery to replace the Lenovo 61++ ThinkPad T470 T570 battery. This battery lasts twice as long the

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 6 hours to 8-1/2 hours of run time with this Lenovo 61+ battery when new, depending on your energy use.