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Description

Product information

The Yuasa NP12-6 VDS is a valve-regulated lead-acid (VRLA) battery with a nominal voltage of 6 V and a capacity of 12 Ah, specially developed for safety-critical and industrial applications. Thanks to leak-proof AGM technology, high discharge current capacity and VdS approval, this battery provides a reliable power supply for many years and is maintenance-free and versatile in use.

Highlights at a glance

  • High capacity: 12 Ah at 6 V, ideal for long-lasting and high-performance systems.
  • VdS approved: G 194006 for safety-related applications
  • Maintenance-free: AGM technology with over 99% gas recombination.
  • Flexible installation: Can be installed in almost any position (except upside down).
  • High load capacity: Up to 360 A discharge current for 1 second.
  • Long-lasting: Service life of up to 5 years at 20 °C according to the EUROBAT classification.

Compact performance for safety-critical applications

The NP12-6 VDS delivers a capacity of 11.1 Ah at a 10-hour discharge rate (down to 1.8 V/cell) and is ideal for systems where a constant supply and short load peaks are essential. With a discharge current of up to 360 A for 1 second and 75 A for 1 minute, the battery is particularly suitable for UPS systems, alarm systems or medical equipment.

Technology for the highest standards

VRLA technology with AGM (Absorbent Glass Mat) ensures gas-tight, maintenance-free operation without the need for water top-ups. The battery achieves a long service life of up to 5 years at 20 °C (EUROBAT: “Standard Commercial”). With a self-discharge rate of only approx. 3% per month, extended storage is also possible without any problems.

 

The battery meets the highest safety standards: the robust housing is made of ABS plastic and can also be supplied in a flame-retardant version (UL94:V0) on request. Low-pressure relief valves ensure safe pressure equalisation within the cells.

Features

ModelYuasa NP12-6 VDS
Battery typeVRLA AGM (maintenance-free)
Nominal voltage (V)6
Capacity (Ah)12 (at 20h rate)
Maximum discharge current120A (for 5 seconds)
Charging voltage (float charge)6.825V (±1%)
Charging voltage (cyclic operation)7.275V (±3%)
Operating temperature (°C)-15 ~ 50
Storage temperature (°C)-20 ~ 50
Service lifeUp to 5 years (according to Yuasa design)
Dimensions (L/W/H, mm)151 x 50 x 94
Weight (kg)2.2
TerminalFaston 6.3mm
CertificationsIEC 60896-21+22, VdS, UL
 

FAQs on the Yuasa lead-acid battery with 6V and 12Ah

How long is the service life of the NP12-6?

According to the EUROBAT classification “Standard Commercial”, the battery has a service life of up to 5 years at an ambient temperature of 20 °C.

Is the battery approved for VdS-certified applications?

Yes, the NP12-6 has VdS certification and is suitable for safety-critical systems such as fire alarm and intruder alarm systems.

Can the battery be installed flexibly?

Yes, installation is possible in any position, except permanently upside down.

What safety features does the battery offer?

It has low-pressure relief valves for safe gas pressure regulation and a robust housing; optionally it is available in a flame-retardant version according to UL94:V0.

How is correct charging carried out (float vs. cycle)?

  • Float charging voltage (at 20 °C): 6.825 V block voltage level (~2.275 V/cell), temperature compensation: – 3 mV/cell/°C
  • Cyclic or boost charging voltage: 7.26 V block (~2.42 V/cell), temperature compensation: – 4 mV/cell/°C
  • Recommended for cyclic charging: max. 3 A (~0.25 C) charge limit

What is the self-discharge rate and what storage conditions apply?

  • Self-discharge: approx. 3%/month at 20 °C
  • Storage period: up to 12 months at 20 °C possible, provided regular recharging is carried out
  • Temperature ranges:
    • Charging: – 15 °C to +50 °C
    • Discharging: – 20 °C to +60 °C
    • Storage (fully charged): – 20 °C to +60 °C
Properties
Capacity: 12Ah
Tension: 6V
VDS: G 194006
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