1. Turn your Sony VGNCR131EBC laptop over.
2. Find the laptop battery release button lock for your Sony VGNCR131EBC laptop.
3. Now that your Sony VGNCR131EBC 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 Sony VGNCR131EBC battery is removed, grab your replacement Sony VGNCR131EBC battery for installation.
6. Insert the battery into the slot. Push the Sony VGNCR131EBC battery towards the laptop and secure it in place.