12-35
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