NP55-12B EnerSys, NP55-12B Datasheet - Page 2

• Manufacturer Part Number: NP55-12B
• Description: LEAD ACID BATTERY, 12V, 56AH
• Manufacturer: EnerSys

Specifications of NP55-12B

• Battery Capacity: 56Ah
• Battery Voltage: 12V
• Battery Technology: Lead Acid
• External Height: 228mm
• External Width: 138mm
• External Depth: 229mm
• Weight: 39.7lb
• Battery Terminals: Bolt
• Height: 8.15"
• Lead Free Status / RoHS Status: na

www.enersysinc.com
When the battery will be used by current in excess of 3C, consult with EnerSys, Inc. prior to use.
CHARGING METHODS (At 20ºC)
CAUTION
SELF DISCHARGE CHARACTERISTICS
(%)
100
(AH%)
75
50
25
120
100
0
80
60
40
20
0
CYCLE SERVICE LIFE IN RELATION
DISCHARGE CHARACTERISTIC
TESTING CONDITIONS: DISCHARGE CURRENT: 0.17C AMP. (F.V. 1.7V/CELL)
•Avoid short circuit
•Do not charge in a sealed container.
200
TO DEPTH OF DISCHARGE
3
CURVES AT 25
100% D.O.D.
EnerSys Inc.
P.O. Box 14145
Reading, PA 19612-4145
USA
Tel:[phone]
400
STORAGE TIME (MONTHS)
6
[phone]
CHARGING CURRENT: 0.09C AMP.
CHARGING VOLUME: 125% OF DISCHARGED CAPACITY
AMBIENT TEMPERATURE: 20
NUMBER OF CYCLES
50% D.O.D.
600
40
0
9
C (104
0
800
C (77
0
F)
12
0
C TO 25
Cycle use:
Standby use: Float charging voltage 13.50 to 13.80V
30% DEPTH OF DISCHARGE
0
1000
F)
0
C (68
30
0
C (86
15
0
F TO 77
EnerSys EMEA
Brussels, Belgium
Tel:[phone]
EnerSys Asia
Guangdong, China
Tel:[phone]
20
1200
0
0
C (68
F)
0
F)
0
F)
18
Maximum charging current 0.25C
Charging voltage 14.4 to 15.0V
1400
(AH%)
120
100
(V)
14.0
13.0
12.0
11.0
10.0
80
60
40
20
TEMPERATURE EFFECTS IN RELATION
0
0
VS REMAINING CAPACITY
OPEN CIRCUIT VOLTAGE
TESTING CONDITIONS: FLOATING VOLTAGE 2.25 TO 2.30V/CELL
TO BATTERY CAPACITY
FLOAT SERVICE LIFE
1
20
REMAINING CAPACITY (%)
2
40
AMBIENT TEMPERATURE: 20
Represented by:
LIFE (YEARS)
3
60
0
C TO 22
4
80
AT 25
0
C (64
0
0
F TO 72
C (77
0
5
F)
0
F)
100
Printed in USA
5.5