1. Turn your Toshiba P305-S8909 laptop over.
2. Find the laptop battery release button lock for your Toshiba P305-S8909 laptop.
3. Now that your Toshiba P305-S8909 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 P305-S8909 battery is removed, grab your replacement Toshiba P305-S8909 battery for installation.
6. Insert the battery into the slot. Push the Toshiba P305-S8909 battery towards the laptop and secure it in place.