1. Turn your HP DM4t-1000 laptop over.
2. Find the laptop battery release button lock for your HP DM4t-1000 laptop.
3. Now that your HP DM4t-1000 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 DM4t-1000 battery is removed, grab your replacement HP DM4t-1000 battery for installation.
6. Insert the battery into the slot. Push the HP DM4t-1000 battery towards the laptop and secure it in place.