1. Turn your Toshiba PSAEGU-00W00U laptop over.
2. Find the laptop battery release button lock for your Toshiba PSAEGU-00W00U laptop.
3. Now that your Toshiba PSAEGU-00W00U 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 PSAEGU-00W00U battery is removed, grab your replacement Toshiba PSAEGU-00W00U battery for installation.
6. Insert the battery into the slot. Push the Toshiba PSAEGU-00W00U battery towards the laptop and secure it in place.