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The Narada Reserve Power of VRLA batteries are well suited to provide battery backup to any application long duration or outside plant application. The Reserve Power GFM /NDx/ FM & TT series batteries are available in top and front terminal designs. All Narada Telecom series batteries use optimized plate technology and a patented post design offering exceptional service life.
Technical Features
Compliance and Safety:
Transportation:
Float Charging Voltage
2.25Vpc to 2.27Vpc @ 77° F (25° C)
Equalize Charging Voltage
2.35Vpc to 2.40Vpc @ 77° F (25° C)
See Operations and Maintenance Manual for specific guidelines and recharge times
-1.7mV/cell/°F > 77°F (-3 mV/cell /°C > 25°C)
+1.7 mV/cell/°F < 77°F (+3 mV/cell/°C < 25°C)
Maximum AC Ripple (Charger)
0.5% RMS, 1.5% peak-to-peak for float charge voltage for best results
Maximum Charge Current
Electrolyte
Self Discharge Rate
<2% per month at 77°F (25°C)
Relief Valve
Self-resealing; Operates at 2 to 3 psi and is complete with integral flame arrestor
Operating Temperature Range
Nominal
+74°F (24°C) to 80°F (27°C)
Charge
-20ºF (-28ºC) to +122ºF (50ºC)
Discharge
-40ºF (-40ºC) to +140ºF (60ºC)
Storage Temperature Range
-4ºF (-20ºC) to +104ºF (40ºC)
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