I have a 2001 Mitsubishi mirage. I went in the store for about a minute and when i came back to start it there was no noise. I had the battery checked and its good. I was told that it was the connectors. I cleaned them and the car worked fine for a bit. Now the car clicks when i try to start it. Lights, wipers, and radio work. Before the dash didn't even light up. Help?

Make sure alternator is charging ? Still could be bad battery, i know you said you had it checked ?? also check all ground wires to make sure they are tight...
Hope this helps you ?

Check the alternator fuse. It is either part of the positive battery clamp or it is a square block fuse in the fuse block. When the fuse blows the battery will go dead while you are driving even though the battery and charging system are working perfectly. The clamp style fuse is only available from the dealer. The block fuse is sometimes bolted in but can be purchased at an auto store. If the after market fuse hose bolt holes instead of slots , open the bolt holes and create slots so you can slide the fuse into place with out having to unbolt the entire fuse block to install it.