I've actually got an x220 with the original 6-cell and a slice battery, which puts me at 6 hours unplugged. It's not very impressive tbh, but it's been worth wh

I've actually got an x220 with the original 6-cell and a slice battery, which puts me at 6 hours unplugged. It's not very impressive tbh, but it's been worth what I paid for it.