NP4-12 EnerSys, NP4-12 Datasheet - Page 3

• 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

www.enersys.com
Technical Features
Construction
Electrolyte Suspension System
Gas Generation
Maintenance Free Operation
Low Pressure Valve Regulated System
Heavy Duty Grids
Cyclic Service Life
Float Service Life
Self Discharge - Shelf Life
Operating Temperature
Deep Discharge Recovery
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
system consisting of a high porosity, glass fiber material
which in conjunction with plates, totally absorb and
contain the electrolyte. No silica gels or any other
contaminants are used.
Genesis NP batteries incorporate a built-in design that
controls gas generation and induces recombination of
more than 99% of gases generated during float usage.
There is no need to check specific gravity of the electrolyte
or add water to Genesis NP batteries during float service
life. In fact, there is no provision for this type of
maintenance.
All Genesis NP batteries are equipped with safety release
valves, designed to operate between 2 and 5 psi and
automatically reseal. Hence, there is never an excessive
accumulation of gas within the battery.
Heavy duty lead calcium tin alloy grids provide an extra
margin of performance and service life in either float or
cyclic applications, even after repeated over discharges.
More than 1000 discharge/recharge cycles can be realized
from Genesis NP batteries, dependent on the average
depth of discharge.
Genesis NP Series batteries have an expected life span of
3 to 5 years in float service applications.
The self discharge rate of the Genesis NP series at room
temperature is approximately 3% of rated capacity per
month.
Genesis NP Batteries may be operated over a broad range
of ambient temperatures.
Genesis NP batteries recover their capacities even after
repeated deep discharges.
Publication No: US-NP-AM-002 • June 2006
TM
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