1. Turn your Toshiba C655-SP5018L laptop over.
2. Find the laptop battery release button lock for your Toshiba C655-SP5018L laptop.
3. Now that your Toshiba C655-SP5018L 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 Toshiba C655-SP5018L battery is removed, grab your replacement Toshiba C655-SP5018L battery for installation.
6. Insert the battery into the slot. Push the Toshiba C655-SP5018L battery towards the laptop and secure it in place.