1. Turn your Toshiba M205-S810 laptop over.
2. Find the laptop battery release button lock for your Toshiba M205-S810 laptop.
3. Now that your Toshiba M205-S810 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 M205-S810 battery is removed, grab your replacement Toshiba M205-S810 battery for installation.
6. Insert the battery into the slot. Push the Toshiba M205-S810 battery towards the laptop and secure it in place.