Get longer battery life and improved performance with a brand new Lenovo ThinkPad 42T4538 battery. This Lenovo 42T4538 battery replaces the original battery found in the Lenovo ThinkPad X200, X200s, X201, X201i, and X201s laptop models. It is also compatible with the 42T4538 battery part number. Don't see your model? Go to our Lenovo ThinkPad battery page for the full list.

We use the highest quality lithium-ion battery cells that provide longer run times with less weight. Our batteries last nearly six times longer than cheaper, lower quality batteries.

This ThinkPad 42T4538 battery is 100% compatible with the original Lenovo battery specifications and is individually tested and backed by a 2 Year warranty.

You can expect 2 to 2.5 hours of battery life with this ThinkPad 42T4538 battery when new, depending on your energy use. If you are looking for even longer battery run times, check out our Long run ThinkPad X200 battery.

The higher capacity battery cells inside this cartridge have an energy capacity of 5200 mAh. This X201i battery will be compatible with batteries rated at 4400 & 4800 mAh capacities while providing up to 20% more run time.