1. Turn your HP ze5315EA laptop over.
2. Find the laptop battery release button lock for your HP ze5315EA laptop.
3. Now that your HP ze5315EA 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 HP ze5315EA battery is removed, grab your replacement HP ze5315EA battery for installation.
6. Insert the battery into the slot. Push the HP ze5315EA battery towards the laptop and secure it in place.