Not going to matter. Apple has a battery FAQ on the support site if you want to read it.
It should arrive with nearly a full charge. Use it. Enjoy it. Plug it in when going to bed tonight and it'll get a full charge by morning.
Maybe once a month or so use it 'til the battery's nearly depleted then charge it all the way up. Battery maintenance isn't nearly as fussy with modern batteries as it was ten or twenty years ago.