Yuasa NP10-6 6V 10Ah VRLA Battery, FASTON Terminals

£ 17 68
(Incl. VAT) RRP: £21.22
Save £3.54

About this product

The Yuasa NP10-6 is a 6V 10Ah valve regulated lead acid (VRLA) battery for general purpose use. It suits installers and maintainers who need a 6V battery on float or cyclic charge. It measures 151 x 50 x 97.5 mm over the terminals and weighs 1.93 kg.

Key features

  • 6V power in a standard block – 6 V nominal and 10 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 6.825 (±1%) V at 20°C with no current limit. Cyclic or boost charge 7.26 (±3%) V at 20°C, limited to 2.5 A.
  • Mounting: 151 (±1) x 50 (±1) mm, 97.5 (±2) mm high over the terminals, 1.93 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 choose a suitable charger.
  • Standards: EUROBAT Standard Commercial 3 to 5 years, with ISO9001 among its certifications.

Frequently asked questions

What size is the NP10-6?

151 (±1) mm long, 50 (±1) mm wide and 97.5 (±2) mm high over the terminals. It has a mass of 1.93 kg.

What charge voltage does it need?

6.825 (±1%) V on float and 7.26 (±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 one has the standard ABS case, rated UL94:HB. Yuasa also makes an FR version, rated UL94:V0.

£ 17 68
RRP: £21.22 Save £3.54
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Technical Details
Specifications
Brand
Yuasa
Model
NP10-6
Manufacturer Part Number (MPN)
NP10-6
Product type
Yuasa industrial VRLA battery
Nominal voltage
6 V
20-hr rate capacity
10 Ah
10-hr rate capacity
To 1.8V per cell at 20°C: 9.2 Ah
Length
151 (±1) mm
Width
50 (±1) mm
Height over terminals
97.5 (±2) mm
Mass
1.93 kg
Terminal type
FASTON - Quickfit / release 4.75
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)
Float charge voltage at 20°C
6.825 (±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
7.26 (±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
2.5 A
Maximum discharge current, 1 second
300 A
Maximum discharge current, 1 minute
48 A
Impedance measured at 1 kHz
8 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
151 (±1) mm long x 50 (±1) mm wide x 97.5 (±2) mm high over terminals

Specifications

Brand Yuasa
Model NP10-6
Manufacturer Part Number (MPN) NP10-6
Product type Yuasa industrial VRLA battery
Nominal voltage 6 V
20-hr rate capacity 10 Ah
10-hr rate capacity To 1.8V per cell at 20°C: 9.2 Ah
Length 151 (±1) mm
Width 50 (±1) mm
Height over terminals 97.5 (±2) mm
Mass 1.93 kg
Terminal type FASTON - Quickfit / release 4.75
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)
Float charge voltage at 20°C 6.825 (±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 7.26 (±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 2.5 A
Maximum discharge current, 1 second 300 A
Maximum discharge current, 1 minute 48 A
Impedance measured at 1 kHz 8 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 151 (±1) mm long x 50 (±1) mm wide x 97.5 (±2) mm high over terminals

Yuasa NP10-6 6V 10Ah VRLA battery, front view

Yuasa NP10-6 6V 10Ah VRLA Battery, FASTON Terminals

Overview

VRLA means valve regulated lead acid. It is the type many people call a sealed lead acid (SLA) battery, because you never top it up with water.

This Yuasa battery has the standard ABS case. It is a 6V block, so it suits equipment built for 6V rather than a higher voltage.

How it works

  • Glass mat: the electrolyte is held in a mat rather than sloshing about as free liquid. That is why orientation is so flexible.
  • Lead calcium grids: lead calcium is widely used because it limits water loss and self discharge.
  • Valves: each cell has a low pressure release valve. Gas can escape and the valve then reseals.
  • Float and cyclic: float means the charger holds the battery topped up on standby. Cyclic means the battery is regularly discharged and fully recharged, which needs a different voltage.

Where to use it

Batteries of this type are often used as standby back-up. Follow the battery size and type the equipment's maker asks for.

Keep it out of sealed enclosures. The gas it can release needs somewhere to go.

What the figures mean in practice

  • 20-hr and 10-hr rates: Ah is charge stored. The 10 Ah figure is measured over 20 hours and the 9.2 Ah figure over 10, because a faster discharge gets less out of a battery.
  • Correction factors: the -3 and -4 figures adjust the charge voltage when the temperature is not the standard 20°C. Chargers without this feature rely on a reasonably steady temperature.
  • 2.5 A charge limit: this applies to cyclic or boost charging. On float charge there is no limit.
  • 8 mΩ impedance: a lower value means the voltage sags less under load. It is a handy comparison when testing an old battery against a new one.

Installing it

  • Terminals: match your leads to the FASTON 4.75 terminals before you start, and keep polarity right.
  • Lifting: do not suspend the battery by any handles where they are fitted.
  • Short circuits: tape or cover a loose lead while you work, since a battery can deliver a very high current through a dropped tool.

Planning your system

Work out the standby load of the system first, then check that this capacity covers the time your standard requires. Add margin for ageing, because capacity falls over the years.

You will also need a suitable charger or a charging circuit that matches the voltages above. A battery tester helps to spot a tired battery at each service visit.

Old batteries must go for recycling under local and national laws and regulations.

Standards and ratings explained

  • EUROBAT Standard Commercial: an industry class that describes the expected life band, here 3 to 5 years. Treat it as a planning guide rather than a promise.
  • UL94:HB: a flammability class for plastics, and the lower of the two classes. V0 is the flame retardant level.
  • ISO9001: this covers the maker's quality management, not the performance of a single battery.
Yuasa NP10-6 6V 10Ah VRLA battery, front view
Yuasa

Yuasa NP10-6 6V 10Ah VRLA Battery, FASTON Terminals

£17.68 £21.22

The Yuasa NP10-6 is a 6V 10Ah valve regulated lead acid (VRLA) battery for general purpose use. It suits installers and maintainers who need a 6V battery on float or cyclic charge. It measures 151 x 50 x 97.5 mm over the terminals and weighs 1.93 kg.

Key features

For installers

Frequently asked questions

What size is the NP10-6?

151 (±1) mm long, 50 (±1) mm wide and 97.5 (±2) mm high over the terminals. It has a mass of 1.93 kg.

What charge voltage does it need?

6.825 (±1%) V on float and 7.26 (±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 one has the standard ABS case, rated UL94:HB. Yuasa also makes an FR version, rated UL94:V0.

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