1. Turn your Asus N53SN laptop over.
2. Find the laptop battery release button lock for your Asus N53SN laptop.
3. Now that your Asus N53SN 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 Asus N53SN battery is removed, grab your replacement Asus N53SN battery for installation.
6. Insert the battery into the slot. Push the Asus N53SN battery towards the laptop and secure it in place.