IBM Lenovo ThinkPad T400 7417 Laptop BatteryLaptop Battery - Premium TechFuel® 9-cell, Li-ion Battery

Bring your laptop computer back to life with a new TechFuel battery. Laptop computers are built to be portable and a new, TechFuel battery specifically designed for your Lenovo ThinkPad T400 7417 laptop computer is just what you need to unplug and be on your way. TechFuel rechargeable batteries are engineered to meet or exceed OEM specifications and feature the latest battery technology, including advanced circuitry, voltage regulation, and thermal circuit protection. TechFuel's state-of-the-art manufacturing facilities are ISO 9001 Certified and RoHS compliant to ensure product quality and safety. TechFuel batteries include a one-year warranty and 30-day money back guarantee and are sold exclusively by Batteryheads. When you purchase a TechFuel battery from Batteryheads, your battery comes with TechFuel's reputation for quality and engineering excellence and Batteryheads' low price and outstanding customer service. The TechFuel® name, images, and contents of this Batteryheads listing are protected by trademarks and copyrights. Copyright © 2012 Batteryheads

Owner Reviews, Ratings, Comments and Criticism
With this new battery, and a little tweaking in powertop I am now getting between 6.1 and 6.4 hours using Ubuntu.