External Short Circuit and Its Effect on Battery Performance
Connecting the outer two ends of the battery to any conductor will cause an external short circuit. For different battery types, the short circuit may bring about different serious consequences. For example, electrolyte temperature rises, internal air pressure rises, etc. If the air pressure exceeds the withstand voltage of the battery cap, the battery will leak. This situation severely damages the battery. If the safety valve fails, it may even cause an explosion. Therefore, do not short-circuit the battery externally.