2002 Saturn SL2 Car won't start/turn over

Sounds like u have luck like me. The last 3 or four batteries I have had gone bad have given me no warning even the same day it was starting fine no problems. Then I go to start it later no dash lights no dome light or a clicking from the starter.I would start by taking the battery cables off make sure there clean and tight. Do u have a volt meter?If u do u can see how many volts the battery has. If u have jumper cables u can try to jump it. Just make sure u get the red and black correct on both batteries. See if it starts that way u can get it to a parts store for testing the alternator amd battery. Also check and make sure u didnt leave something on headlights dome light etc. Let me know what u find.