Battery Life and Charge Time - The Lenovo ThinkPad T450s Review: Bridging The Ultrabook
Lenovo ThinkPad X230 review | Engadget
buying my x230 a 9 cell battery so i can have a good battery life : r/ thinkpad
Lenovo ThinkPad X230 (2320-2AM) Ivy Bridge laptop Review: Lenovo Thinkpad X230 review: a 12.5in, 3rd gen Intel laptop that provides excellent user comfort - Notebooks - Performance - PC World Australia