1. Turn your Toshiba PSAE3U-075023 laptop over.
2. Find the laptop battery release button lock for your Toshiba PSAE3U-075023 laptop.
3. Now that your Toshiba PSAE3U-075023 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 PSAE3U-075023 battery is removed, grab your replacement Toshiba PSAE3U-075023 battery for installation.
6. Insert the battery into the slot. Push the Toshiba PSAE3U-075023 battery towards the laptop and secure it in place.