Hello Emma ! Great choice with the Interstate Batteries FAS1075. Ensure you follow the manufacturer’s guidelines for installation. Start by disconnecting power, then carefully replace the old battery with the FAS1075, paying attention to the correct polarity. Secure all connections tightly, and power up the system. Don’t forget to perform a system test to ensure everything is functioning as expected. If you encounter any issues during the installation, feel free to ask for assistance. Good luck!