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Why is Temperature Profiling of Batteries Important?
Charge and discharge currents increase the temperature of batteries and temperature directly affects the lifespan and storage capacity of batteries. Batteries tend to be efficient and provide a normal life span at room temperatures. When batteries are subjected to cold temperatures, their capacity is greatly reduced and as temperatures increase above room temperature, their life span is reduced. At extreme temperatures, batteries can break down in several stages; leakage, smoke, fire and explosion. Manufacturers often perform abuse tests to determine the temperatures for each of the stages of breakdown. When batteries fail spectacularly with smoke and fire it is typically due to a short causing a rapid discharge and greatly increased heat. So newer batteries have an extra protection that acts as a fuse to avoid an external short circuit.
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