1. Turn your Lenovo X61 laptop over.
2. Find the laptop battery release button lock for your Lenovo X61 laptop.
3. Now that your Lenovo X61 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 X61 battery is removed, grab your replacement Lenovo X61 battery for installation.
6. Insert the battery into the slot. Push the Lenovo X61 battery towards the laptop and secure it in place.