my lebaron won't start

i got a 93 lebaron that won't start when i turn the key it is as if i dont have enough battery power but it is not the battery i switched batteries and the same thing happend somebody help my out please

Is your engine cranking? If so, what does it sound like? Is it making any odd noises? Only thing I can think of right now is if it's not doing anything, it might be a bad contact in the ignition wiring or in the cables to your battery. When you place the key in the start position, does it give a bulb check as usual?

If the engine is cranking, do you hear a loud grinding sound? You probably need a new starter if so.

Are you getting fuel to the engine? If the engine is cranking, leave it crank for a few seconds with the large air hose from your air filter to the intake manifold off. After you crank for a few seconds, smell the opening to the manifold and see if you smell gas. You might have a clogged line and/or fuel filter.

well, if the engine doesn't crank but makes a buzzing noise then it may be that the engine is siezed or that the starter is junk.