This time around I built a wooden box bolted to the floor which will keep the battery from sliding around and tipping over. I cut a hole into the cabinet for a 120 mm computer fan, it runs at about 70 CFM. The fan is rated at 100,000 hours. At the max rate when equalizing, the 400 amp hour flooded battery only makes 1/2 CFM - people are just to paranoid about blowing themselves up while charging the battery. Truth is batteries like the same temp you and I do.
Here is my wooden battery box
Installed over the axel &
bolted to the floor to prevent sliding
On the exterior is the vent for the fan.