How to change the battery on a TI-30XS calculator

Recently, I started getting a low battery message on a TI-30XS calculator that I've had for a while. My understanding is that while the calculator runs mostly on solar power, the battery helps keep memory stored, or allows the calculator to work when there is not much light. If anyone knows more about this, please feel free to let me know in the comments!
FYI, the type of battery that was inside is a 2032.