1. Turn your Toshiba 305-SP1052L laptop over.
2. Find the laptop battery release button lock for your Toshiba 305-SP1052L laptop.
3. Now that your Toshiba 305-SP1052L 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 305-SP1052L battery is removed, grab your replacement Toshiba 305-SP1052L battery for installation.
6. Insert the battery into the slot. Push the Toshiba 305-SP1052L battery towards the laptop and secure it in place.