Battery intake/cover

[05Mazda3sp23]

just want to make sure... but any reason i need to keep that cover and plastic intake on the battery??? well atleast that intake thing... its kinda in the way.... just wana make sure i dont screw something up....

Thanks for the Help/input

 

[stereomazda3]

i dont think it really matters i have taken mine out now for about 8 months