Fan in fuse panel constantly running...

Thanks guys. The TT is brand new and I've plugged it in here and there at home for the past week. Today its had the opportunity to be plugged in the longest its ever been (at least since I've had it). I just went out and unplugged it after 6-7 hours and the fan was not running. Does that mean the inverter finished charging the battery?

I've been meaning to disconnect the battery and put a trickle charge on it. Its brand new, but that doesn't mean anything.