1. Turn your Lenovo T61P laptop over.
2. Find the laptop battery release button lock for your Lenovo T61P laptop.
3. Now that your Lenovo T61P laptop battery is unlocked, find the battery release button down.
4. Holding the laptop battery release button, gently pull your battery away from the laptop.
5. Now that your Lenovo T61P battery is removed, grab your replacement Lenovo T61P battery for installation.
6. Insert the battery into the slot. Push the Lenovo T61P battery towards the laptop and secure it in place.