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Exposure to temperatures in excess of 90°F (32°C) should be limited to no more than
30 days per year. Under no circumstances should the battery be exposed to
temperatures over 104° F (40° C) which can lead to thermal runaway, a condition that
damages the battery. Thermal runaway can cause batteries to swell. If the battery
cases burst, the hazardous contents may be exposed.
Maintaining proper ambient temperature usually requires installing the product in a
temperature controlled space. Equipment rooms without cooling systems do not
generally maintain the proper conditions for good battery life.
