NP4-12 EnerSys, NP4-12 Datasheet - Page 6

• Manufacturer Part Number: NP4-12
• Description: 12V/4AH SEALED LEAD ACID BATT
• Manufacturer: EnerSys
• Series: NPr

Specifications of NP4-12

• Voltage - Rated: 12V
• Capacity: 4.0Ah
• Size / Dimension: 3.54" L x 2.76" W x 4.21" H (90mm x 70mm x 107mm)
• Termination Style: Spade, .187" and .250" (4.7mm and 6.3mm)
• Rechargeability: Yes
• Brand/series: NP Series
• Chemical System: Lead Acid
• Dimensions: 90mmL×70mmW×106mmH
• Primary Type: Rechargeable
• Resistance, Internal: 40 Milliohms
• Size: Rectangular
• Temperature, Operating: -15 to +50 °C
• Temperature, Operating, Maximum: +50 °C (Charge), +60 °C (Discharge)
• Temperature, Operating, Minimum: -15 °C (Charge), -20 °C (Discharge)
• Termination: 0.187/0.25 Quick Disconnect Tab
• Voltage, Nominal: 12 V
• Voltage, Rating: 12 V
• Weight: 1.75 kg
• Lead Free Status / RoHS Status: Contains lead / RoHS compliant by exemption
• Other names: Q4855529

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www.enersys.com
Charging
Discharge
Storage
• LAYOUT
• TERMINAL
•
•
•
•
•
•
•
•
Range Summary
Standby use: Apply constant voltage charging at 2.275 volts
per cell (or 2.25–2.30VPC).
Cyclic use: Apply constant voltage charging at 2.40-2.50 VPC.
Initial charging current should be set at less than 0.25CA.
Top charge: Product in storage (ambient temperature 25°C/77°F)
requires a top charge every six months. Apply constant voltage at
2.40 volts per cell, initial charging current should be set at
less than 0.1CA for 15 to 20 hours.
Stop operation when voltage has reached the minimum
permissible voltage. Recharge immediately.
Do not operate at 6CA or more current continuously.
Always store battery in a fully charged condition.
If battery is to be stored for a long period, apply a recovery
top-charge every 6 months.
Store batteries in a dry and cool location.
U Positive
Terminal
Faston tab : 187
U Negative
Terminal
6
1
A
MG Positive
0.430
Tyco. 1-480318-0 L
0.860
2
7
MG Negative
0.295
Automotive Type
0.530
AP Positive
Temperature
Incorporating battery into equipment
Others
Terminal height above cover
•
•
•
•
•
•
•
Terminal
Type
Keep within ambient temperatures of –15
charging and discharging.
Encase battery in a well ventilated compartment.
Avoid installing battery near heated units such as a transformer.
House the battery in the lowest section of the equipment
enclosure or rack to prevent unnecessary battery temperature
rise.
Avoid terminal short circuit.
DO NOT expose to open flame.
Avoid setting batteries in environments which can cause
direct contact to gasoline, paint thinner, organic solvents,
synthetic resins, oil, etc.
MG
NB
MJ
AP
U
B
3
8
Automotive Type
AP Negative
22.8
28.4
22.8
38.1
22.8
mm
5.1
NP33-12
0.20
0.90
1.12
0.90
1.50
0.90
ins
NP55/75/100-12
21.1
26.9
21.1
36.3
21.1
mm
3.3
0.13
0.83
1.06
0.83
1.43
0.83
ins
NB Terminal
Publication No: US-NP-AM-002 • June 2006
4
9
0
C to +50
Note:
Dimensions are in inches (mm)
Tolerances are -
and -
dimensions.
B Terminal
+
0.08 in. (-
0
C for both
+
+
2mm) for height
0.04 in. (-
MJ Terminal
5
+
1mm)
M