Taylormade RocketBladez Irons-12-27-193440 1i

I have a 1996 Ford Probe 2.0. A few months ago i got the oxygen sensor,
TaylorMade R11s Driver, ignition wires and axles repaired. Now,
Ping G20 Irons, when I start my car after it has been sitting for a while it makes a VERY LOUD screeching noise.

Taylormade RocketBladez Irons, my alarm pad beeps and reads low battery or bad fuse. How do I locate the battery and/or fuses? I opened the back but don’t quite know what I’m looking for. I was told I could replace the battery for a fraction of the cost a company would charge me to do it.