My car won't start and the battery is fine. on 2003 Honda Element

My 2003 honda element will not start. The battery is charged and the lights come on. It will crank like it want's to start but it sounds like it's getting worse, like it does even want to crank after 2 times. What could be the problem?

Asked by for the 2003 Honda Element
replace starter
2 more answers , 1 more comment
replace starter
Have starter checked
how can I check the starter if it's here at home? could the altenator be bad?