How to Open a Car Key to Replace the Battery?

[StevenFitz]

First, purchase the original battery's electronic, which is a small battery, ensuring the voltage and model are the same. After taking out the key, remove the mechanical key. The mechanical key requires pressing a small button, and then it can be pulled out. Take out the car key and use a small flat-head screwdriver to pry open the car key. There will be a small gap in the middle of the car key, and it can be gently twisted to pry open. Use a small flat-head screwdriver to pry out the old battery, install the new battery, and then assemble it back together.