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Cisco 1240 Connected Grid Router Hardware Installation Guide
OL-26223-04
Chapter 12 Installing Battery Backup Units
BBU Technical Specifications
Charge Conditions
Operating and Storage Temperatures
Battery Life
Table 12-2 Battery Backup Unit—Charge Specifications
Charge Conditions Description
Power draw No more than 20 W when charging
State of charge No more than 90%
Entry to charging
limit
1
1. All conditions are met.
• BBU cable harness is installed
• Charge is enabled
• State of Charge (SOC) <85%
• AC power detected in the range of 85V to 250V for more than 20 ms.
• External ambient temperature is within -4 to 104°F (-20 to 40°C)
Exit charging
2
2. Any condition is met
• BBU cable harness not installed
• Charge is disabled
• AC power (range of 85V to 250V) not detected for more than 20 ms.
• External ambient temperature is within -4 to 104°F (-20 to 40°C)
Table 12-3 Battery Backup Unit—Operating and Storage Temperatures
BBU State Local BBU Internal Temperature External Ambient 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 shipping +14 to 113°F (-10 to 45°C) for 3
months 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
Table 12-4 Battery Backup Unit — Battery Life
Product ID Battery Life Charge-Discharge Cycles
CGR-BATT-4AH 5 years 500