1. Turn your Toshiba G25-AV513 laptop over.
2. Find the laptop battery release button lock for your Toshiba G25-AV513 laptop.
3. Now that your Toshiba G25-AV513 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 G25-AV513 battery is removed, grab your replacement Toshiba G25-AV513 battery for installation.
6. Insert the battery into the slot. Push the Toshiba G25-AV513 battery towards the laptop and secure it in place.