NPX-25T EnerSys, NPX-25T Datasheet
NPX-25T
Specifications of NPX-25T
Related parts for NPX-25T
NPX-25T Summary of contents
Page 1
... APPLICATION MANUAL Genesis NP and NPX ™ Series Publication No: US-NP-AM-002 • June 2006 TM ...
Page 2
... Genesis NP & NPX Series Application Manual TM Today’s Genesis™ NP Series is the culmination of more than ten decades of battery manufacturing experience. High energy density, leak proof construction, excellent performance in either float or cyclic applications and long service life combine to make the Genesis NP Series the most ...
Page 3
... Cyclic Service Life Float Service Life Self Discharge - Shelf Life Operating Temperature Deep Discharge Recovery www.enersys.com Benefit The construction and sealing techniques of the Genesis NP battery guarantee leakproof operation in any position with no adverse effect to capacity or service life. All Genesis NP batteries utilize an electrolyte suspension ...
Page 4
... Uninterrupted Power Supply (UPS) Equipment Emergency Lighting Computers Genesis NP Battery Construction Sealant Negative Plate Electrolyte Retentive Separator Positive Plate 4 www.enersys.com Cyclic Service Audio and Video Equipment Portable Lights Electric Wheelchairs Test Equipment Geophysical Equipment Lid Terminal Relief Valve Float/Cyclic Service Medical Equipment ...
Page 5
... NP24-12FR NP33-12 NP33-12FR - NP38-12B - NP38-12R NP55-12 NP55-12FR NP65-12 NP65-12FR NP75-12 NP75-12FR NP90-12 NP90-12FR NP100-12 NP100-12FR NP120-12 NP120-12FR NP150-12 NP150-12FR NP200-12 NP200-12FR DATASAFE NPX SERIES Type FR Type* Volts NPX-50 NPX-50FR 6 NPX-25 NPX-25FR NPX-35 NPX-35FR NPX-80 NPX-80FR - NPX-100B - NPX-100R 12 - NPX-150B - NPX-150R FOOTNOTES: * FR: UL94-VO, Flame Retardant Case and Cover (Oxygen index: 30) ** FR: UL94-V2, Flame Retardant Case and Cover (Oxygen index: 30) Recognized by UL File No ...
Page 6
... Do not operate at 6CA or more current continuously. Storage • Always store battery in a fully charged condition. • If battery stored for a long period, apply a recovery top-charge every 6 months. • Store batteries in a dry and cool location. www.enersys.com 0.860 Terminal height above cover Terminal Type 0 ...
Page 7
... These tables should be consulted when selecting a battery for a high discharge application. The discharge rates depicted in Table 2.5 reference watts per cell of the DataSafe NPX series of batteries. These batteries are designed for Uninterruptable Power Supply (UPS) applications where high rate discharge performance (under 30 minutes) is typical ...
Page 8
... Table 2. Discharge Current at Stipulated Discharge Rates (NPH) 10 Hr. Capacity 0.01C 2.0 0.20 2.3 0.23 3.2 0.32 Table 2.5 NPX Watts Per Cell to 1.67 End Voltage NPX-25 NPX-50 NPX-35 NPX-80 NPX-100 NPX-150 Table 3. Discharge Capacity at Various Discharge Rates 20 Hr. 20 Hr. Capacity 0.05CA to 1.75 V/C ...
Page 9
... From 0. Current in excess of 3C When considering discharge currents exceeding 3C, consult with an EnerSys Application Engineer. ■ Self-Discharge The self-discharge rate of Genesis NP batteries is approxi- mately 3% per month when the storage temperature is maintained at 20 ...
Page 10
... OVERCHARGING CURRENT:0.6A (0.1CA) AMBIENT TEMPERATURE: 25ºC (77ºF) CAPACITY TEST: n=2 Figure 9. Overcharge Characteristics of NP7-12 Under Continuous Overcharge www.enersys.com 10 ■ Two Step Constant Voltage Charging Two step constant voltage charging is the recommended method for charging a sealed lead-acid battery in a short period of time, and maintaining the battery in a fully charged standby or float condition,thereafter ...
Page 11
... CHARGE VOLTAGE: 2.30V/C TEMPERATURE: 25ºC (77ºF) Figure 11. Constant-Voltage Charge Characteristics with no Current Limit www.enersys.com ■ Refresh Charging Since any battery loses capacity through self-discharge recommended that a “refresh charging” be applied to any battery which has been stored for a long period of time, prior to putting the battery into service ...
Page 12
... AH Delivered To The Battery During Charge Figure 13. Charging Efficiency vs. State of Charge 12 www.enersys.com The charging efficiency varies depending upon the state of charge of the battery, temperature, and charging rate. Figure 13 illustrates the concept of the state of charge and charging efficiency. As shown in Figure 14, Genesis NP batteries exhibit very high charging efficiency, even when charged at low charging rates ...
Page 13
... NUMBER OF CYCLES (CYCLES) Figure 16. Cyclic Service Life in Relation to Depth of Discharge Genesis NP Series The relationship between the number of cycles which can be www.enersys.com expected, and the depth of discharge is readily apparent. In relation to a specified discharge rate, if the application requires a longer cyclic life than is obtainable by selecting the battery capacity according common practice, select a battery with larger capacity ...
Page 14
... Actual life will vary greatly due to variability of these conditions. To obtain optimum battery performance for standby service, EnerSys recommends that within five years of use, the NP batteries be replaced. Observe the external appearance of the battery. If, at any time, cracks, deformation or other damage is found on the battery case or cover any leakage of the electrolyte is observed, immediately replace the battery ...
Page 15
... Shelf Life Standby Service Trickle Charge Voltage Cutoff www.enersys.com The final voltage of a cell or battery at the end of charge or discharge. A single charge and discharge of a cell or battery. Current taken from a cell or battery and expressed as a fraction of C (Ampere-hour rating of the cell or battery). ...
Page 16
... Limited Warranty: General Product Limited Warranty EnerSys Delaware Inc. (“EnerSys”) warrants Genesis NPX batteries against defective materials and workmanship for a period of one (1) full year from the date the battery was manufactured initial physical inspection identifies flaws in material or workmanship that would impair life of the battery, as defined by this warranty, or product performance, as defined by EnerSys’ ...