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Aging Factors in Battery Sizing - Prudent Engineering or Waste of Effort?

Jim McDowall

This paper demonstrates that, for applications involving high rate, short duration loads, the use of an aging factor is critical to achieving full battery life expectancy. For loads of longer duration, the aging factor is also important if the full duty cycle time is to be supported throughout life. It will be shown, however, that application of the aging factor to the exclusion of other considerations can sometimes be detrimental to system reliability. This is particularly the case in telecom systems where battery space is limited.

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