1. Turn your Toshiba (PSC13U) laptop over.
2. Find the laptop battery release button lock for your Toshiba (PSC13U) laptop.
3. Now that your Toshiba (PSC13U) 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 (PSC13U) battery is removed, grab your replacement Toshiba (PSC13U) battery for installation.
6. Insert the battery into the slot. Push the Toshiba (PSC13U) battery towards the laptop and secure it in place.