Class A battery maintenance

Just got back from a trip. Had to repair our golf cart. While doing so, my buddy said you need to clean your batteries. We sprayed them with battery cleaner and then rinsed them off. All signs of corrosion are gone and they look brand new. I will next spray protectorant on the terminals. I have two racks of batteries in the mh. I am thinking about spraying both sets with the cleaner and then rinsing off with a water hose like we did the golf cart. Once this was done I was gonna set up a small fan to blow into the battery compartment to aid in drying the batterys, rack, etc. Water will not hit any electrical components, only the batteries, battery wires and the rack system. Does anyone see any harm in doing this??