1. Turn your Toshiba A665-SP6003L laptop over.
2. Find the laptop battery release button lock for your Toshiba A665-SP6003L laptop.
3. Now that your Toshiba A665-SP6003L 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 A665-SP6003L battery is removed, grab your replacement Toshiba A665-SP6003L battery for installation.
6. Insert the battery into the slot. Push the Toshiba A665-SP6003L battery towards the laptop and secure it in place.