1. Turn your Toshiba A350-20Q laptop over.
2. Find the laptop battery release button lock for your Toshiba A350-20Q laptop.
3. Now that your Toshiba A350-20Q 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 A350-20Q battery is removed, grab your replacement Toshiba A350-20Q battery for installation.
6. Insert the battery into the slot. Push the Toshiba A350-20Q battery towards the laptop and secure it in place.