User's Manual

29/OCT/2014 REVIEW DRAFT — CISCO CONFIDENTIAL
3-7
Cisco IR500 Series WPAN Gateway and Range Extender Installation and Configuration Guide
Chapter 3 Battery Backup Unit
BBU Technical Specifications
Operating and Storage Temperatures
Ta b l e 3-6 Battery Backup Unit—Operating and Storage Temperatures
BBU State
Local BBU Internal
Temperature
1
1. Internal BBU heaters allow the outside ambient temperature to drop much lower than the BBU internal temperature, thereby
preserving battery life and expanding the operating temperature.
Charging +32 to 122°F (0 to 50°C) -4 to 104°F (-20 to 40°C)
Discharging -4 to 140°F (-20 to 60°C) -40 to 122°F (-40 to 50°C)
Operation (Idle) -4 to 140°F (-20 to 60°C) -40 to 122°F (-40 to 50°C)
Storage and
ship
ping
+14 to 113°F (-10 to 45°C)
for 3 mont
hs maximum
Short-term:
+14 to 113°F (-10 to 45°C) for 3 months
maximum
Long-term:
+27 to 77°F (
-3 to 25°C)
- 65% Relative Humidity
- 40 to 90% SOC
Battery Life
Ta b l e 3-7 Battery Backup Unit — Battery Life
Product ID Battery Life Charge-Discharge Cycles
CGR-BATT-4AH 5 years 500
External Ambient Temperature