Yuasa 12V 1.2Ah Industrial VRLA Battery NP1.2-12

£ 11 14
(Incl. VAT) RRP: £13.37
Save £2.23

About this product

The Yuasa NP1.2-12 is a 12V 1.2Ah VRLA battery for general purpose use, where VRLA means valve regulated lead-acid. It suits anyone replacing a battery of this size in existing equipment. It measures 97 x 48 x 54.5 mm and has FASTON terminals.

Key features

  • Small and light – 0.58 kg
  • Fits most ways round – any orientation except permanently inverted
  • Quick connection – FASTON quickfit and release terminals
  • No free acid inside – Absorbed Glass Mat construction
  • Holds its charge in storage – capacity loss per month at 20°C about 3 %
  • Made under a recognised system – ISO9001 quality management

For installers

  • Power: nominal voltage 12 V, 1.2 Ah at the 20-hr rate. Float charge 13.65 V (±1%) per block at 20°C.
  • Mounting: any orientation except permanently inverted. Do not place inside a sealed container.
  • Cabling: FASTON - Quickfit / release 4.75.
  • Standards: EUROBAT Standard Commercial 3 to 5 years. Case ABS (UL94:HB).

Frequently asked questions

What size is a 12V 1.2Ah battery?

This one is 97 (±1) mm long and 48 (±1) mm wide, and 54.5 (±2) mm high over the terminals.

What charge voltage does it need?

13.65 V (±1%) per block on float at 20°C. Cyclic or boost use is 14.5 V (±3%) per block.

Can it be mounted on its side?

Yes. It can be installed and operated in any orientation except permanently inverted.

How long does it last?

The design life is up to 5 yrs at 20°C, with a EUROBAT classification of 3 to 5 years.

Can it be charged in a sealed box?

No. VRLA batteries release hydrogen gas which can form explosive mixtures, so do not place it inside a sealed container.

How much current can it deliver?

A maximum of 36 A for 1 second, or 12 A for 1 minute.

£ 11 14
RRP: £13.37 Save £2.23
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Technical Details
Specifications
Brand
Yuasa
Model
NP1.2-12
Manufacturer Part Number (MPN)
NP1.2-12
Nominal voltage
12 V
20-hr rate capacity to 1.75V/cell at 20°C
1.2 Ah
10-hr rate capacity to 1.8V/cell at 20°C
1.1 Ah
Length
97 (±1) mm
Width
48 (±1) mm
Height over terminals
54.5 (±2) mm
Mass
0.58 kg
Terminal type
FASTON - Quickfit / release 4.75
Storage temperature (fully charged)
-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
ABS (UL94:HB)
Float charge voltage at 20°C per block
13.65 V (±1%)
Float charge voltage at 20°C per cell
2.275 V (±1%)
Float charge temperature correction from 20°C
-3 mV
Cyclic (or boost) charge voltage at 20°C per block
14.5 V (±3%)
Cyclic (or boost) charge voltage at 20°C per cell
2.42 V (±3%)
Cyclic charge temperature correction from 20°C
-4 mV
Float charge current limit
No limit
Cyclic (or boost) charge current limit
0.3 A
Maximum discharge current, 1 second
36 A
Maximum discharge current, 1 minute
12 A
Impedance measured at 1 kHz
110 mΩ
EUROBAT classification
Standard Commercial 3 to 5 years
Yuasa design life at 20°C
up to 5 yrs
Certifications
ISO9001 - Quality Management Systems
Dimensions
Dimensions
97 (±1) x 48 (±1) x 54.5 (±2) mm

Specifications

Brand Yuasa
Model NP1.2-12
Manufacturer Part Number (MPN) NP1.2-12
Nominal voltage 12 V
20-hr rate capacity to 1.75V/cell at 20°C 1.2 Ah
10-hr rate capacity to 1.8V/cell at 20°C 1.1 Ah
Length 97 (±1) mm
Width 48 (±1) mm
Height over terminals 54.5 (±2) mm
Mass 0.58 kg
Terminal type FASTON - Quickfit / release 4.75
Storage temperature (fully charged) -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 ABS (UL94:HB)
Float charge voltage at 20°C per block 13.65 V (±1%)
Float charge voltage at 20°C per cell 2.275 V (±1%)
Float charge temperature correction from 20°C -3 mV
Cyclic (or boost) charge voltage at 20°C per block 14.5 V (±3%)
Cyclic (or boost) charge voltage at 20°C per cell 2.42 V (±3%)
Cyclic charge temperature correction from 20°C -4 mV
Float charge current limit No limit
Cyclic (or boost) charge current limit 0.3 A
Maximum discharge current, 1 second 36 A
Maximum discharge current, 1 minute 12 A
Impedance measured at 1 kHz 110 mΩ
EUROBAT classification Standard Commercial 3 to 5 years
Yuasa design life at 20°C up to 5 yrs
Certifications ISO9001 - Quality Management Systems

Dimensions

Dimensions 97 (±1) x 48 (±1) x 54.5 (±2) mm

Yuasa NP1.2-12 VRLA battery, side view

Yuasa 12V 1.2Ah Industrial VRLA Battery NP1.2-12

Overview

This is a small lead-acid block for equipment that needs a modest rechargeable supply. Valve regulated designs like this one are sealed in normal use and are not topped up with water.

It suits end users replacing a tired battery like for like, and installers keeping spares for small systems.

How it works

The acid is held in glass mat instead of sloshing freely around the plates. Each cell also has a small valve that lets excess gas out and then reseals.

Where to use it

12 V batteries of this type are often used as back-up in alarm equipment and small control panels. Check the capacity, size and terminals your equipment calls for before swapping one in.

The guide to replacing burglar alarm batteries covers the general steps, and the burglar and intruder alarm batteries range shows other sizes.

What the figures mean in practice

  • Capacity rate: Capacity depends on how fast you draw the power. Over 20 hours it gives 1.2 Ah, and over 10 hours it gives 1.1 Ah.
  • Self-discharge: At 20°C it loses about 3 % of capacity a month, so a stored battery still needs recharging from time to time.
  • Temperature correction: The float correction factor is -3 mV from the standard 20°C, so a charger in a warm enclosure may need adjusting.

Installing it

  • Polarity: Check the positive and negative markings before connecting, as the terminals sit close together.
  • Ventilation: Hydrogen can build up, so never seal it in an airtight box.
  • Charger: Limit cyclic or boost charging to 0.3 A. There is no limit on float charging.

Planning your system

The job needs a charger or panel output matched to the charge voltages above. Other sizes sit in the Yuasa batteries range and among specialist and industrial batteries.

At the end of its life it must be recycled in accordance with local and national laws and regulations.

Standards and ratings explained

  • EUROBAT: the battery trade group behind these life bands. Standard Commercial 3 to 5 years is the band given for this model.
  • UL94:HB: a plastics flammability grade for the case material.
Yuasa NP1.2-12 VRLA battery, side view
Yuasa

Yuasa 12V 1.2Ah Industrial VRLA Battery NP1.2-12

£11.14 £13.37

The Yuasa NP1.2-12 is a 12V 1.2Ah VRLA battery for general purpose use, where VRLA means valve regulated lead-acid. It suits anyone replacing a battery of this size in existing equipment. It measures 97 x 48 x 54.5 mm and has FASTON terminals.

Key features

For installers

Frequently asked questions

What size is a 12V 1.2Ah battery?

This one is 97 (±1) mm long and 48 (±1) mm wide, and 54.5 (±2) mm high over the terminals.

What charge voltage does it need?

13.65 V (±1%) per block on float at 20°C. Cyclic or boost use is 14.5 V (±3%) per block.

Can it be mounted on its side?

Yes. It can be installed and operated in any orientation except permanently inverted.

How long does it last?

The design life is up to 5 yrs at 20°C, with a EUROBAT classification of 3 to 5 years.

Can it be charged in a sealed box?

No. VRLA batteries release hydrogen gas which can form explosive mixtures, so do not place it inside a sealed container.

How much current can it deliver?

A maximum of 36 A for 1 second, or 12 A for 1 minute.

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