The information in this section was derived from IEEE Standard 450-1975. Battery Maintenance . Inspect the maintenance logs of batteries and their charging equipment. Batteries should be checked on a regular basis in accordance with manufacturer's instructions to ensure that available capacity is not less than 80 percent of rated capacity at any time. The following items are examples of items that might appear in the licensee's records of his testing procedures.
Many battery cells are transparent, which makes it easier to ascertain the state of the plates.
Check that ventilation equipment is operable. Check for ambient temperature controls. Cells should not be exposed to extremely low ambient temperatures or localized sources of heat during storage. Generator Maintenance Procedures . Most manufacturers furnish a detailed maintenance, operation, troubleshooting and spare parts manual with each engine- driven generator.