The IBM/Lenovo Thinkpad T and T20 Series laptops have impressive battery life. But with all the cool but power-hungry features packed into these notebooks, it won't be long before the batteries start to wear out and mobile computing time becomes significantly shorter. Even with the latest technologies, batteries are bound to degrade after some time and one has no recourse but to get replacements.
For the IBM/Lenovo Thinkpad T and T20 Series laptops, you should get the 02K6649 replacement battery which is created specially for these notebook models. The battery is designed to fit perfectly in the laptop's battery slot, and it's a Li-ion much like the original battery. In fact, even before the existing battery wears out, it may be a wise idea to buy the 02K6649 for your spare use, considering the massive power requirements of the IBM/Lenovo Thinkpad T and T20 Series laptops. This is particularly important when you are always on the go and may at times forget to recharge the installed battery.
