1. Turn your Lenovo Z61T laptop over.
2. Find the laptop battery release button lock for your Lenovo Z61T laptop.
3. Now that your Lenovo Z61T 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 Z61T battery is removed, grab your replacement Lenovo Z61T battery for installation.
6. Insert the battery into the slot. Push the Lenovo Z61T battery towards the laptop and secure it in place.