Device for filling pot (20) of a lead battery comprises: reservoirs (1, 2) enclosing sulfuric acid and mixture of water and gelling agent, respectively; containers (4, 5) each connected to one of the reservoirs and incorporating a piston (10, 11) for expel...

A first series of current pulses is applied to the battery so that the electrolyte is stirred and ready for a second series which are used for measurement. The current pulses are limited to a peak (IMAX) related to the battery capacity and the pulse slope ...