How do you remove the battery from a 1993 Saturn SL2?

Original equipment Saturn batteries have a "side post" battery connection. Disconnect the negative battery connection first, then remove the positive connection.

Next remove the battery "hold down" assembly, by removing the bolt. It's a single bolt that holds a clamp bar, near the bottom of the battery.

Lift out the battery, put the new battery in it's place, replace the hold down assembly, reconnect the positive side post connection, reconnect the negative side post connection... then FINALLY, re-program the radio to your favorite pre-selects and set the clock time.