1. Turn your Toshiba PSAFGU-058002 laptop over.
2. Find the laptop battery release button lock for your Toshiba PSAFGU-058002 laptop.
3. Now that your Toshiba PSAFGU-058002 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 PSAFGU-058002 battery is removed, grab your replacement Toshiba PSAFGU-058002 battery for installation.
6. Insert the battery into the slot. Push the Toshiba PSAFGU-058002 battery towards the laptop and secure it in place.