One Thought on “Mission Critical”

  • The Mission Critical industry appears to concede to the fact that the service life of batteries never reaches published design life. In the field, battery systems tend to fail after 50-60% of design life. Why? In calculating published design life, manufacturers typically take into account optimal operating conditions as concerns float voltage, temperature, and discharge cycles. Battery manufacturers usually stipulate that their products be maintained at a temperature of 25°C, that they not be cycled more than ‘X’ number of times in their lifecycle, and that they are charged at a float voltage of 2.25 vpc. Where the first two of these conditions are typically under the control of the user, for the most part, the latter— float voltage—is not.

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