1. Turn your Gateway M6887u laptop over.
2. Find the laptop battery release button lock for your Gateway M6887u laptop.
3. Now that your Gateway M6887u 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 Gateway M6887u battery is removed, grab your replacement Gateway M6887u battery for installation.
6. Insert the battery into the slot. Push the Gateway M6887u battery towards the laptop and secure it in place.