Rockwell Automation 1748 DataSite Configured Panel Installation Instructions - Manual (Page 46)

Publication 1748-IN001B-EN-P - May 2009
46 DataSite Configured Panel Battery
Charging and Discharging
The batteries supplied with the DataSite configured panel are designed for
discharge in temperatures ranging from -40 °C to 60 °C (-40 °F to 140 °F) and
to be charged in temperatures ranging from -20 °C to 50 °C (-4 °F to 122 °F).
Charging or discharging of these batteries outside of the specified ranges can
cause reduced battery life.
Operating Temperature
When installing the DataSite configured panel in regions where the ambient
temperature could fall below 16 °C (60.8 °F), derating the DataSite configured
panel backup time is necessary to ensure reliable use of the system. The battery
capacity of the DataSite configured panel should be derated as the temperature
decreases.
See the table, DataSite Configured Panel Battery Derating , for derated hours
of backup based on ambient temperature. This table assumes the battery can
be charged to 100% capacity. For details on battery capacity, see
Recommended Battery Replacement Schedule on page 31 .
DataSite Configured Panel Battery Derating
Average summer
temperature Maximum duration without sunlight
14 Ah battery 28 Ah battery 56 Ah battery
-40 °C (-40 °F) 8 hours 16 hours 32 hours
-30 °C (-22 °F) 11 hours 22 hours 45 hours
-20 °C (-4 °F) 14 hours 28 hours 57 hours
-10 °C (14 °F) 18 hours 36 hours 72 hours
0 °C (32 °F) 21 hours 42 hours 84 hours
10 °C (50 °F) 23 hours 46 hours 92 hours
20 °C (68 °F) 24 hours 48 hours 97 hours
30 °C (86 °F) 25 hours 50 hours 101 hours
40 °C (104 °F) 25 hours 51 hours 103 hours
50 °C (122 °F) 26 hours 52 hours 105 hours
60 °C (140 °F) 26 hours 52 hours 105 hours
70 °C (158 °F) 26 hours 52 hours 105 hours