Battery acid. Synonym: battery sulfuric acid. Chemical symbol: H2S04 It is produced by the contact method. The domestic industry produces battery acid with the following concentration: a) battery sulfuric acid 22-28 ° Bś, i.e.. 25—32% 3 b) battery sulfuric acid 32 ° j§ i.e.. 37,5% c) sulfuric battery acid 92-93% According to PN, sulfuric acid should contain at least 58% pure sulfuric acid. The standard strictly defines the permissible pollutants. Battery acid is used in construction to charge batteries. The demand is given in terms of 100%. Packaging and storage as technical sulfuric acid.