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What is the lithium battery life expectancy in a XBTGT or XBTGK.

Lithium battery's life expectancy for the XBTGT and XBTGK is:
  1. 10 years when the battery's ambient temperature is less than or equal to 40 deg C (104 deg F)
  2. 10 years when the unit's ambient temperature is less than or equal to 25 deg C (77 deg F)
When used for backup (without main power):
  1. Approximately 60 days, with a fully charged battery
  2. Approximately 6 days, with a 10% charged battery
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