(1) The specific gravity of the electrolyte is lower than that of the normal battery, and the open circuit voltage is also relatively low; (2) When the access circuit is discharged, the voltage of the short-circuited battery drops rapidly; if it is connected in series with other normal batteries, the plate of the short-circuited battery will undergo deep vulcanization, and the positive plate will change from brown to brownish yellow, while the negative plate will be shallow. Gray turns gray. (3) When the charging is slow or does not take off, the electrolyte temperature is high; At this point, different treatment methods should be used for the cause of the short circuit: (1) If it is a short circuit caused by too much deposit at the bottom of the battery, the battery should be completely discharged, then the electrolyte is poured out, washed repeatedly with pure water and then recharged; (2) If it is a short circuit caused by the bending of the plate, it may be considered to insert a spacer at the place where the plate contacts; (3) If it is due to the displacement of the lead spring and the short circuit caused by the plate and lead lining, just correct the position of the spring.
The material properties to be considered when selecting a soft seat are
1) fluid compatibility, including expansion, hardness loss, permeability, degradation;
2) hardness;
3) permanent deformation;
4) degree of recovery after load elimination;
5) pull-up Compressive strength;
6) deformation before rupture;
7) modulus of elasticity.
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Battery internal short circuit treatment
When a short circuit fault occurs inside the battery , the following phenomenon will occur: