4.Neutralize spilled battery acid with the special solutions contained in a spill kit or with a solution of 1 lb baking soda to 1 gallon of water.
5.Be sure the mixture is neutral, then collect the residue and place the residue in a drum or other suitable container.
6.Properly dispose of hazardous waste.
WARNING: Do not allow discharge of unneutralized acid to reach the sewer.