Strengths: 100% Genuine IBM Part.1 year warranty.Very light! Same weight as the DVD/CDRW combo drive!
Summary: I have a ThinkPad T42 with the 6 cell battery. I'm getting about an extra two hours of working time with this battery installed. It's very light also. The same weight as the DVD/CDRW that it replaces. I'm very happy with it, however I wish that the price was lower. I'm planning on upgrading from the 6 cell to 9 cell battery, so with this battery I should get about 8 hours!