Abstract: A multicell electric storage battery includes a rectangular section container containing a plurality of cells extending along the length of the container. A lid is common to all the cells and has a depending skirt which is sealed to the container. The battery has two top terminals extending through the lid and situated on the central longitudinal axis of the lid and two side terminals which are connected to a respective plate strap by a respective connector member which passes through and is sealed to the walls of a housing which projects upwardly from the lid and whose interior is sealed from the interior of the battery and one of whose outwardly facing side walls carries a side terminal.

Abstract: A vented filling plug for an electric storage cell has a vent path including a flame trap through which gas may enter or leave the cell arranged so as, in use, to communicate with the interior of the cell at a point above the normal electrolyte level. The flame trap includes a liquid trap defined by a trough and a tubular partition, and a ceramic partition. The plug also has a filling path through which electrolyte may be poured into the cell arranged so as, in use, to communicate with the interior of the cell at a point below the normal electrolyte level. The filling path includes a liquid trap defined by a trough and a partition below the normal electrolyte level.