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Yuasa NP4-12 12V 4Ah VRLA Battery, FASTON Terminals
£
21
49
(Incl. VAT)
RRP: £25.79
About this product
The Yuasa NP4-12 is a 12V 4Ah valve regulated lead acid (VRLA) battery for general purpose use. It suits installers and maintainers who need a small 12V battery on float or cyclic charge. It measures 90 x 70 x 106 mm over the terminals, weighs 1.75 kg and has FASTON terminals.
Key features
- 12V power in a standard block – 12 V nominal and 4 Ah at the 20-hr rate
- No free acid inside – Absorbed Glass Mat construction
- Comes back after heavy use – good recovery from deep discharge
- Fits awkward spaces – can be installed and operated in any orientation except permanently inverted
- Planned service life – EUROBAT Standard Commercial 3 to 5 years, Yuasa design life up to 5 years at 20°C
- Slow loss in storage – capacity loss of about 3% per month at 20°C
For installers
- Power: float charge 13.65 (±1%) V at 20°C with no current limit. Cyclic or boost charge 14.5 (±3%) V at 20°C, limited to 1 A.
- Mounting: 90 (±1) x 70 (±1) mm, 106 (±2) mm high over the terminals, 1.75 kg. Any orientation except permanently inverted.
- Cabling: FASTON - Quickfit / release 4.75.
- Compatibility: check the equipment's own battery and charging figures against this one, and use a charger that matches them.
- Standards: EUROBAT Standard Commercial 3 to 5 years, with ISO9001 certification.
Frequently asked questions
What size is the NP4-12?
90 (±1) mm long, 70 (±1) mm wide and 106 (±2) mm high over the terminals. It has a mass of 1.75 kg.
What charge voltage does it need?
13.65 (±1%) V on float and 14.5 (±3%) V for cyclic or boost charging, both at 20°C. Use a charger set for lead acid batteries.
Can it be mounted on its side?
Yes. It can be installed and operated in any orientation except permanently inverted.
Can it go in a sealed box?
No. VRLA batteries release hydrogen gas which can form explosive mixtures in the air, so it must not be placed inside a sealed container.
How long does it last?
Yuasa gives a design life of up to 5 years at 20°C, and EUROBAT classes it Standard Commercial, 3 to 5 years. Heat and repeated deep discharge usually shorten real service life.
Is it flame retardant?
No. This model's case is Standard ABS (UL94:HB). There is also an FR version at UL94:V0.
-
Download
- NP4-12 datasheet
£
21
49
RRP: £25.79
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Technical Details
Specifications
Brand
Yuasa
Model
NP4-12
Manufacturer Part Number (MPN)
NP4-12
Product type
Yuasa industrial VRLA battery
Nominal voltage
12 V
20-hr rate capacity
To 1.75V per cell at 20°C: 4 Ah
10-hr rate capacity
To 1.8V per cell at 20°C: 3.7 Ah
Length
90 (±1) mm
Width
70 (±1) mm
Height over terminals
106 (±2) mm
Mass
1.75 kg
Terminal type
FASTON - Quickfit / release 4.75
Storage temperature (in fully charged condition)
-20°C to +60°C
Charge temperature
-15°C to +50°C
Discharge temperature
-20°C to +60°C
Capacity loss per month at 20°C
3% approx
Case material
Standard ABS (UL94:HB)
FR version
UL94:V0
Float charge voltage at 20°C
13.65 (±1%) V
Float charge voltage per cell at 20°C
2.275 (±1%) V/cell
Float voltage correction from standard 20°C
-3 mV
Cyclic or boost charge voltage at 20°C
14.5 (±3%) V
Cyclic or boost charge voltage per cell at 20°C
2.42 (±3%) V/cell
Cyclic voltage correction from standard 20°C
-4 mV
Float charge current limit
No limit
Cyclic or boost charge current limit
1 A
Maximum discharge current, 1 second
120 A
Maximum discharge current, 1 minute
40 A
Impedance measured at 1 kHz
40 mΩ
EUROBAT classification
Standard Commercial 3 to 5 years
Yuasa design life at 20°C
up to 5 years
Third party certifications
ISO9001 - Quality Management Systems
Construction
Absorbed Glass Mat, no free acid
Grids
Lead Calcium
Installation
Any orientation except permanently inverted
Handles
Must not be suspended by their handles (where fitted)
Dimensions
Dimensions
90 (±1) mm long x 70 (±1) mm wide x 106 (±2) mm high over the terminals
Specifications
| Brand | Yuasa |
|---|---|
| Model | NP4-12 |
| Manufacturer Part Number (MPN) | NP4-12 |
| Product type | Yuasa industrial VRLA battery |
| Nominal voltage | 12 V |
| 20-hr rate capacity | To 1.75V per cell at 20°C: 4 Ah |
| 10-hr rate capacity | To 1.8V per cell at 20°C: 3.7 Ah |
| Length | 90 (±1) mm |
| Width | 70 (±1) mm |
| Height over terminals | 106 (±2) mm |
| Mass | 1.75 kg |
| Terminal type | FASTON - Quickfit / release 4.75 |
| Storage temperature (in fully charged condition) | -20°C to +60°C |
| Charge temperature | -15°C to +50°C |
| Discharge temperature | -20°C to +60°C |
| Capacity loss per month at 20°C | 3% approx |
| Case material | Standard ABS (UL94:HB) |
| FR version | UL94:V0 |
| Float charge voltage at 20°C | 13.65 (±1%) V |
| Float charge voltage per cell at 20°C | 2.275 (±1%) V/cell |
| Float voltage correction from standard 20°C | -3 mV |
| Cyclic or boost charge voltage at 20°C | 14.5 (±3%) V |
| Cyclic or boost charge voltage per cell at 20°C | 2.42 (±3%) V/cell |
| Cyclic voltage correction from standard 20°C | -4 mV |
| Float charge current limit | No limit |
| Cyclic or boost charge current limit | 1 A |
| Maximum discharge current, 1 second | 120 A |
| Maximum discharge current, 1 minute | 40 A |
| Impedance measured at 1 kHz | 40 mΩ |
| EUROBAT classification | Standard Commercial 3 to 5 years |
| Yuasa design life at 20°C | up to 5 years |
| Third party certifications | ISO9001 - Quality Management Systems |
| Construction | Absorbed Glass Mat, no free acid |
| Grids | Lead Calcium |
| Installation | Any orientation except permanently inverted |
| Handles | Must not be suspended by their handles (where fitted) |
Dimensions
| Dimensions | 90 (±1) mm long x 70 (±1) mm wide x 106 (±2) mm high over the terminals |
|---|
Yuasa NP4-12 12V 4Ah VRLA Battery, FASTON Terminals
