For the future: 
 
If the car cranks, normally it is not a starter problem.  If the car cranks slowly, likely a battery that is a bit drained or is on the way out (the factory Box battery is not a long lived battery in my experience). 
 
If the car sits for a long time, the battery may need a trickle charger affixed or you can simply fast charge it every so often.   
 
If the weather is cold, marginal batteries will go south on you. 
 
Lastly, I hope you didn't touch the gas while trying to start the car. With FI, this would be a no-no. 
 
Good luck in the future.
		 
		
		
		
		
		
		
		
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