Skip to main content Skip to search Skip to main navigation
Menu

Yuasa NP2.3-12 VdS industrial battery 12 V 2.3 Ah

Description

Product information

The Yuasa NP2.3-12 is a maintenance-free VRLA industrial battery with VdS approval. It impresses with its compact dimensions, reliable power delivery and a service life of up to 5 years. Ideal if you need a stable 12-volt supply in a compact space for safety and emergency power applications.

Highlights at a glance

  • Reliable capacity: 2.3 Ah at 20-hour discharge down to 10.5 V at 20 °C.
  • Compact and lightweight: 178 x 34 x 64 mm at 0.95 kg.
  • Flexible mounting: Operation in any position except permanently upside down.
  • Low self-discharge: About 3 percent per month at 20 °C.
  • Especially safe: Low pressure relief valves, UL recognised materials.
  • Easy installation: FASTON plug-in connection 4.7 mm.

Maximum performance for compact applications

Despite its small size, the NP2.3-12 delivers high charging currents for short periods. Up to 69 A for 1 second and 23 A for 1 minute are possible. The measured internal resistance is 90 mΩ at 1 kHz. This makes the battery particularly suitable for fire and intruder alarm systems, emergency and safety lighting, controllers, measuring instruments as well as small UPS and buffer applications.

Efficiency meets long service life

The EUROBAT classification as Standard Commercial stands for a typical service life of 3 to 5 years at 20 °C. The low self-discharge supports long service times. The housing is made as standard from ABS to UL94 HB, with an optionally available flame-retardant FR version to UL94 V0. Valve-regulated recombination and low-maintenance operation ensure high operational safety.

Technology for flexible applications

The battery can be operated in almost any position except permanently upside down. The operating temperature range for charging and discharging is minus 20 °C to plus 60 °C. For float charging, 13.65 V ±1 percent is provided, with temperature compensation of minus 3 mV per cell and degree Celsius. For fast charging, 14.50 V ±3 percent applies, compensation minus 4 mV per cell and degree Celsius. 

 

For float charging, no current limitation is required, for fast charging 0.575 A is recommended. Sufficient ventilation must be ensured, as hydrogen can be produced with VRLA batteries.

Electrical connection is via FASTON 4.7 mm plug-in connectors. The compact design facilitates installation in narrow housings and racks.

Features

 
ModelYuasa NP2.3-12 VdS
Battery typeVRLA AGM (cycle-resistant, maintenance-free)
Nominal voltage (V)12
Capacity (Ah)2.3 (at 20h rate)
Maximum discharge current23A (for 5 seconds)
Charging voltage (float charge)13.65V (±1%)
Charging voltage (cyclic operation)14.7V (±3%)
Operating temperature (°C)-15 ~ 50
Storage temperature (°C)-20 ~ 50
Service lifeHigh cycle life
Dimensions (L/W/H, mm)178 x 35 x 66
Weight (kg)1
ConnectionBlade terminal
CertificationsIEC 60896-21+22, UL, VdS
 

FAQs about the Yuasa NP lead battery

For which applications is the battery suitable?

Preferred areas of application are VdS-compliant fire and intruder alarm systems, emergency and safety lighting, control and signalling systems, measuring instruments, small UPS and buffer applications.

How is the battery installed?

Mounting is possible in any position except permanently upside down. Electrical connection is via FASTON blade terminals 4.7 mm. Please ensure correct polarity and sufficient ventilation.

What charging voltage is recommended?

  • For float charging 13.65 V ±1 percent at 20 °C, temperature compensation minus 3 mV per cell per °C. 
  • For fast charging 14.50 V ±3 percent at 20 °C with compensation minus 4 mV per cell per °C.
  • No current limitation required for float charging, for fast charging 0.575 A.

Are there any special safety instructions?

Each cell has a low pressure valve for controlled venting. Do not operate batteries in gas-tight housings. Dispose of at the end of service life according to local regulations.

Ask ChatGPT

Is the battery suitable for series and parallel connections?

Basically yes, provided installation is carried out according to Yuasa guidelines. Observe identical cable lengths per strand, suitable fuses, correct polarity and sufficient ventilation. For multiple strands, follow the instructions for multi-strand connection. 

Which chargers are suitable?

Chargers with constant voltage for VRLA-AGM, set to the voltages specified in the data sheet and taking temperature compensation into account.


 

Properties

Capacity: 2.3Ah
Tension: 12V
VDS: G 101139

Documents 1

Reviews 0

0 of 0 reviews

Average rating of 0 out of 5 stars

Leave a review!

Share your experiences with other customers.


Skip product gallery

Customers also bought

YUANP1.2/12
Yuasa Lead-acid battery with 12V and 1.2Ah - NP1.2-12 VdS

The Yuasa NP1.2-12 VdS is a compact, valve-regulated lead-acid battery (VRLA) with a nominal voltage of 12 V and a capacity of 1.2 Ah. Thanks to its leak-proof AGM technology, excellent deep discharge recovery and VdS certification, this maintenance-free battery is ideal for safety-critical applications such as fire alarm systems, emergency power systems or communication devices.Highlights at a glanceCompact capacity: 1.2 Ah at 12 V for small to medium consumersCertified: VdS approval for safety-relevant systemsHigh current carrying capacity: Maximum discharge current 36 A for 1 minuteMaintenance free: AGM technology with gas recombination and sealed housingDurable: EUROBAT classification "Standard Commercial" – up to 5 years service lifeCompact energy for critical systemsWith 1.2 Ah (20h discharge up to 1.75 V/cell), the NP1.2-12 lead-acid battery offers a reliable power supply for safety-relevant applications. Thanks to its high peak current output, it is particularly suitable for devices that require more power at short notice, for example in alarm or emergency scenarios.Maintenance-free technology with robust designThe AGM technology (Absorbent Glass Mat) binds the electrolyte completely in the separator so that no free electrolyte can escape. The integrated oxygen recombination (> 99 %) prevents water loss and makes the battery virtually maintenance-free. Low-pressure safety valves ensure controlled gas release and close automatically again. The housing is made of robust ABS plastic (UL94:HB), optionally a flame-retardant version (UL94:V0) is available. Thanks to the compact design, the battery is easy to integrate, even in space-critical systems.Features  ModelYuasa NP1.2-12 VdS Battery typeVRLA AGM (maintenance-free) Rated voltage (V)12 Capacity (Ah)1.2 (at 20h rate) Maximum discharge current15A (for 5 seconds) Charging voltage (trickle charge)13.65V (±1%) Charging voltage (cycle operation)14.7V (±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)97 x 48 x 58 Weight (kg)0.55 ConnectionFaston 4.8mm CertificationsIEC 60896-21+22, VdS, UL  FAQs about the Yuasa lead-acid battery with 12V and 1.2AhFor which applications is the NP1.2-12 suitable?The NP1.2-12 is ideal for fire alarm systems, emergency lighting, telecommunications, security and backup systems, medical equipment and portable electronics.How long does the battery last?In float mode, the service life is up to 5 years at 20 °C. In cyclic operation, over 1,000 charge/discharge cycles are possible (depending on the depth of discharge).How safe is the operation?The battery is valve-regulated (VRLA), has a closed system with gas recombination and can be operated in any position except permanently upside down.Which connection type is used?Faston plug-in connections (4.8 mm) allow a quick and secure connection.How is the NP1.2-12 correctly charged?Float charging voltage (20 °C): 13.65 V (≈ 2.275 V/cell), temperature compensation −3 mV/cell/°CBoost/cycle charge: 14.5 V (≈ 2.42 V/cell), compensation −4 mV/cell/°CMax. charging current in cycle mode: approx. 0.3 AWhat temperature ranges and storage conditions must be observed?Charging: −15 °C to +50 °CDischarge: −20 °C to +60 °CStorage (fully charged): −20 °C to +50 °CSelf-discharge: approx. 3 % per month at 20 °C

YUANP7/12
Yuasa Lead-acid battery with 12V and 7Ah - NP7-12

The Yuasa NP7-12 is a powerful, valve-regulated lead-acid battery (VRLA) with a nominal voltage of 12 volts and a capacity of 7 Ah. It impresses with its reliable performance, robust design and versatile application options, ideal for industrial applications, safety and emergency power systems.Highlights at a glanceReliable capacity: 7 Ah at 12 V for constant power supply.Compact format: 151 × 65 × 97.5 mm, ideal for limited installation space.Flexible installation: Can be installed in any position, except permanently upside down.Maintenance free: VRLA technology with low pressure drain valves.Durable: EUROBAT classification "Standard Commercial" for up to 5 years of use.High current carrying capacity: Up to 210 A discharge current for 1 second.Robust performance for demanding applicationsThe NP7-12 offers a 20-hour capacity of 7 Ah (up to 1.75 V/cell at 20°C) and a 10-hour capacity of 6.4 Ah (up to 1.8 V/cell). Thanks to its high current carrying capacity of up to 210 A for 1 second, the battery is particularly suitable for emergency power systems, UPS systems and safety-related applications.Maintenance-free operation and long service lifeThe NP7-12 is classified as "Standard Commercial" according to EUROBAT and offers a service life of up to 5 years at 20°C ambient temperature. The self-discharge is only about 3% per month, ensuring a high level of operational readiness even after extended storage. The housing is made of durable ABS plastic (UL94:HB) and is also available in a flame-retardant version (UL94:V0) upon request. The battery meets the ISO 9001 quality standard.Easy integration and reliable technologyThe battery is equipped with Faston connectors (4.75 mm) and can be easily integrated into almost any system. Installation is possible in all positions, except permanently upside down. Each of the six cells is fitted with a low-pressure relief valve, which reseals automatically after pressure equalisation for maintenance-free and safe operation. The recommended float charge voltage is 13.65 V (±1%) per unit, for cyclic operation 14.5 V (±3%). The maximum charging current is 1.75 A during cyclic operation; for float charging there is no limit.Features ModelYuasa NP7-12 Battery typeVRLA AGM (maintenance-free) Nominal voltage (V)12 Capacity (Ah)7 (at 20h rate) Maximum discharge current80A (for 5 seconds) Charge voltage (float charge)13.65V (±1%) Charge voltage (cyclic operation)14.7V (±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 65 x 94 Weight (kg)2.5 ConnectionFaston 6.3mm CertificationsIEC 60896-21+22, VdS, UL  FAQs about the Yuasa lead-acid battery with 12V and 7AhHow long does the NP7-12 last?The NP7-12 offers a service life of up to 5 years at 20°C ambient temperature and complies with the EUROBAT category "Standard Commercial".For which applications is the battery suitable?The battery is suitable for:UPS systemsFire detection and alarm systemsMedical devicesEmergency lightingTelecommunications and control systemsIs flexible installation possible?Yes, the battery can be operated in almost any position, just avoid a permanently upside down mounting position.What safety features are integrated?The battery features a robust ABS housing and low-pressure relief valves for safe gas pressure regulation. A flame-retardant housing is optionally available.How and with which parameters is the NP7‑12 charged correctly?Float charging voltage: 13.65 V unit voltage (2.275 V/cell) at 20°C, temperature compensation –3 mV/cell/°C.Cyclic (boost) charging voltage: 14.5 V unit (2.42 V/cell), compensated with –4 mV/cell/°C.Recommended charging current for cyclic operation: up to approx. 1.75 A (~0.25 C)What is the maximum discharge current and how good is the deep discharge resistance?Short-term peak current (1 sec): 210 A,1‑minute current: 48 AInternal impedance: about 23 mΩ at 1 kHz.The battery recovers excellently after deep discharge and is structurally robust in designWhat is the self-discharge during storage and what should be observed?At 20°C, the self-discharge is about 3% per month. The NP7‑12 can be stored for up to 12 months, provided it is recharged regularly. Storage should be between –20°C and +60°C, ideally not exceeding +30°C. 

YUANP12/12
Yuasa Lead-acid battery with 12V and 12Ah - NP12-12 VDS

The Yuasa NP12-12 VDS is a high-quality, valve-regulated lead acid battery (VRLA) with a nominal voltage of 12 volts and a capacity of 12 Ah. Equipped with maintenance-free AGM technology and VdS certification, this battery provides a reliable and long-lasting power supply for safety-critical and industrial applications. Whether in standby mode or in cyclical operation, the NP12-12 meets the highest quality and safety standards.Highlights at a glanceHigh capacity: 12 Ah at 12 V for long-lasting power supply.VdS-certified: Ideal for fire and burglar alarm systems.Maintenance-free: Leak-proof AGM technology with > 99 % gas recombination.High current carrying capacity: Up to 360 A discharge current for 1 second.Flexible mounting: Operation in all positions (except permanently overhead).Durable: EUROBAT class “Standard Commercial” with up to 5 years service life.Powerful performance for safety-critical applicationsThe NP12-12 delivers 12 Ah with a 20-hour discharge (to 1.75 V/cell) and 11.1 Ah with a 10-hour discharge (to 1.8 V/cell). With a maximum discharge current of 360 A for 1 second and 75 A for 1 minute, this battery is also ideally suited for short-term power peaks.Robust technology for demanding environmentsThanks to VRLA technology (Valve Regulated Lead Acid) with AGM system (Absorbent Glass Mat), the NP12-12 is absolutely maintenance-free and leak-proof. The battery features self-closing low-pressure release valves for safe pressure equalisation within the cells. The internal resistance is 44.39 mΩ according to EN IEC 60896-21, the short-circuit current is 320 A. The low self-discharge of approx. 3 % per month allows long-term storage with high operational readiness. The robust ABS housing can also be supplied in a flame-retardant version (UL94:V0) on request.Features  ModelYuasa NP12-12 VDS Battery typeVRLA AGM (maintenance-free) Nominal voltage (V)12 Capacity (Ah)12 (at 20h rate) Maximum discharge current120A (for 5 seconds) Charging voltage (standby charge)13.65V (±1%) Charging voltage (cyclic operation)14.7V (±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 98 x 94 Weight (kg)4.0 ConnectionFaston 6.3mm CertificationsIEC 60896-21+22, VdS, UL  FAQs about the Yuasa NP12-12 lead-acid batteryFor which applications is the NP12-12 suitable?The battery is ideally suited for:VdS-compliant fire and burglar alarm systemsUninterruptible power supplies (UPS)Safety lightingTelecommunicationsControl and regulation technologyMedical devicesIs the battery maintenance-free?Yes, thanks to AGM technology the battery is completely maintenance-free and leak-proof.What is the service life of the NP12-12?The service life is up to 5 years at 20 °C and corresponds to the EUROBAT category “Standard Commercial”.Can the battery be installed flexibly?Yes, the battery can be operated in all orientations, except for permanently upside-down installation.Which charging parameters (float vs. cycle) apply?Float charging voltage (20 °C): approx. 13.65 V (2.275 V/cell), compensation –3 mV/cell/°CBoost/cycle charge: approx. 14.5 V (2.42 V/cell), compensation –4 mV/cell/°CCyclic charge limitation: max. 3 A (~0.25 C)What temperature ranges and storage conditions apply?Charging: −15 °C to +50 °CDischarge: −20 °C to +60 °CStorage (fully charged): −20 °C to +60 °CSelf-discharge: approx. 3 % per month at 20 °C

YUANP17/12I
Yuasa Lead-acid battery with 12V and 17Ah - NP17-12I VDS

The Yuasa NP17-12I VDS is an industrial, valve-regulated lead-acid battery (VRLA) with 12 V nominal voltage and 17 Ah capacity (20h). Thanks to leak-proof AGM technology, high current carrying capacity and VdS certification, this maintenance-free battery is particularly suitable for safety-critical applications such as fire alarm systems, UPS systems or telecommunications.Highlights at a glanceHigh capacity: 17 Ah (20h) / 15.7 Ah (10h) at 12 V for continuous power supply.Certified: VdS approval for safety-relevant systems such as fire alarm systems.Highly resilient: Up to 500 A discharge current for 1 second.Maintenance-free: VRLA-AGM technology with > 99 % gas recombination.Robust design: Internal thread or bolt connection (M5) for secure installation.Durable: EUROBAT class “Standard Commercial” up to 5 years operating life.Powerful solution for critical systemsWith a capacity of 17 Ah (20h discharge to 1.75 V/cell) or 15.7 Ah (10h discharge to 1.8 V/cell), the NP17-12I supplies reliable power even during sudden loads up to 500 A for 1 second. Ideal for use in safety-critical areas where constant performance and operational safety are decisive.Robust technology with long service lifeThe maintenance-free AGM technology (Absorbent Glass Mat) ensures a gas-tight seal with > 99 % gas recombination. The battery does not require electrolyte refilling and features self-closing low-pressure vent valves for safe pressure regulation. Self-discharge is only approx. 3 % per month, ideal for long-term readiness. The housing is made from durable ABS plastic (UL94:HB), with a flame-retardant version to UL94:V0 available as an option. The M5 internal thread or bolt connections enable stable and secure assembly with a tightening torque of 2.45 Nm.Features  ModelYuasa NP17-12I VDS Battery typeVRLA AGM (maintenance-free) Nominal voltage (V)12 Capacity (Ah)17 (at 20h rate) Maximum discharge current170A (for 5 seconds) Charging voltage (float charge)13.65V (±1%) Charging voltage (cyclic operation)14.7V (±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)181 x 76 x 167 Weight (kg)6.6 ConnectionM5 thread CertificationsIEC 60896-21+22, VdS, UL  FAQs about the Yuasa lead-acid battery with 12V and 17AhFor which applications is the NP17-12I suitable?The NP17‑12I is a maintenance-free 12 V / 17 Ah AGM VRLA battery with VdS approval, ideally suited for UPS systems, emergency lighting, alarm and security technology, telecommunications, medical devices and PV backup systems.How long does the battery last?The NP17-12I offers a service life of up to 5 years at 20 °C and is classified as “Standard Commercial” according to EUROBAT.How safe is it to use?The battery is maintenance-free, features self-closing vent valves for gas pressure regulation and a robust housing. Installation is possible in all positions except permanently upside-down.What type of connection is used?The battery is equipped with M5 internal thread or bolt connections, optimal for a stable and vibration-resistant connection.How is the NP17‑12I charged correctly?Float Charging voltage (20 °C): 13.65 V (≈ 2.275 V/cell), temperature compensation –3 mV/cell/°CBoost/cycle charge: 14.5 V (≈ 2.42 V/cell), compensation –4 mV/cell/°CMax. charging current in cycle mode: approx. 4.25 A (~0.25 C)What temperature ranges and storage conditions should be observed?Charging: −15 °C to +50 °CDischarging: −20 °C to +60 °CStorage (fully charged): −20 °C to +60 °CSelf-discharge: approx. 3 % per month at 20 °C

YUANP24/12I
Yuasa Lead-acid battery with 12V and 24Ah - NP24-12I VdS

The Yuasa NP24-12I VdS is an industrial, valve-regulated lead-acid battery (VRLA) with 12 V nominal voltage and 24 Ah capacity. With leak-proof AGM technology, high current carrying capacity, and VdS approval, this maintenance-free battery is the reliable energy source for safety-critical applications such as fire alarm systems, UPS systems, or telecommunications installations.Highlights at a glanceReliable capacity: 24 Ah (20h) / 22.3 Ah (10h) at 12 V for constant power supplyCertified: VdS approval for safety-relevant systemsHigh peak load: Maximum discharge current up to 500 A for 1 secondMaintenance-free: AGM technology with > 99 % gas recombinationFlexible installation: Female thread or bolt connections (M5) with 2.45 Nm tightening torquePowerful solution for critical systemsWith a nominal capacity of 24 Ah (20h discharge to 1.75 V/cell) and 22.3 Ah (10h discharge to 1.8 V/cell), the NP24-12I ensures reliable and stable power supply – even during sudden load peaks up to 500 A. Ideally suited for emergency power supplies, security technology and communication systems where reliability is the highest priority.Robust technology with high operational reliabilityThe maintenance-free AGM technology (Absorbent Glass Mat) completely contains the electrolyte in the separator, so no free electrolyte is present. With gas recombination of over 99 % and self-closing safety valves, the battery is safe in operation and does not need topping up. The low self-discharge of about 3 % per month makes it particularly stable in storage. The robust ABS plastic housing complies with UL94:HB, and a flame-retardant version in accordance with UL94:V0 is available on request.Features  ModelYuasa NP24-12I VdS Battery typeVRLA AGM (cycle resistant, maintenance-free) Nominal voltage (V)12 Capacity (Ah)24 (at 20h rate) Maximum discharge current240A (for 5 seconds) Charging voltage (float charge)13.65V (±1%) Charging voltage (cycle operation)14.7V (±3%) Operating temperature (°C)-15 ~ 50 Storage temperature (°C)-20 ~ 50 Service lifeHigh cycle life Dimensions (L/W/H, mm)175 x 166 x 125 Weight (kg)8.6 ConnectionM5 thread CertificationsIEC 60896-21+22, UL, VdS  FAQs about the Yuasa lead-acid battery with 12V and 24AhFor which applications is the NP24-12I suitable?It is ideal for fire detection systems, UPS systems, emergency lighting, telecommunications, security technology and PV backup systems.What is the typical service life in standby mode?The NP24-12I offers a service life of up to 5 years at 20 °C and is classified as "Standard Commercial" according to EUROBAT.What type of connection is used?Female thread or bolt connections (M5) with a tightening torque of 2.45 Nm ensure a secure and vibration-resistant connection.Is the battery really maintenance-free and leak-proof?Yes. VRLA technology with gas recombination and valve-regulated design. Each cell has a low-pressure valve. yuasa.deIn which position may the NP24-12I be installed?Installation and operation possible up to 90 degrees from the upright position. Permanent overhead installation is not intended.Which charging voltages must be observed and how high may the charging current be?Float charge at 20 °C 13.65 V per block. Cyclic charge at 20 °C 14.5 V per block. Temperature compensation Float about −3 mV per cell and °C, cyclic about −4 mV per cell and °C. Cyclic charging current up to 6 A.Can the battery be operated in a closed housing?No, VRLA batteries can emit hydrogen gas. Installation in hermetically sealed enclosures is not permitted and adequate ventilation must always be ensured. 

YUANP38/12I
Yuasa Lead-acid battery with 12V and 38Ah - NP38-12I VDS

The Yuasa NP38-12I VDS is an industrial, valve-regulated lead-acid battery (VRLA) with a nominal voltage of 12 V and a capacity of 38 Ah (20h). Equipped with robust AGM technology and VdS approval, this battery is the ideal solution for safety-critical applications with high performance requirements.Highlights at a glanceHigh capacity: 38 Ah (20h) / 35.3 Ah (10h) at 12 V for continuous power supply.VdS-certified: For use in safety-relevant areas (VdS no. G 182024).Maintenance-free: AGM technology with > 99 % gas recombination.Powerful: Up to 500 A discharge current (1 second) and 804 A short-circuit current.Safe connection: M5 internal thread or bolt connection with 2.45 Nm torque.Long-lasting: EUROBAT class "Standard Commercial" up to 5 years service life.Powerful for safety-critical systemsThe NP38-12I is ideal for applications where reliable, uninterruptible power is required. With a 20h capacity of 38 Ah and a 10h capacity of 35.3 Ah, the battery provides consistently high power even during prolonged operation. The maximum current output is 500 A (1 second), making it ideal for systems with short-term high-load requirements.Maintenance-free operation with high safetyThanks to AGM technology (Absorbent Glass Mat), the battery is completely maintenance-free and gas-tight. The integrated low-pressure relief valves ensure safe pressure equalisation within the cells. Installation is possible in any position, except for permanently upside-down mounting. Self-discharge is only approx. 3 % per month at 20 °C, so the battery remains ready for use even after long storage. The shock-resistant ABS casing is optionally available in a flame-retardant version in accordance with UL94:V0.Features  ModelYuasa NP38-12I VDS Battery typeVRLA AGM (maintenance-free) Nominal voltage (V)12 Capacity (Ah)38 (at 20h rate) Maximum discharge current380A (for 5 seconds) Charging voltage (trickle charge)13.65V (±1%) Charging voltage (cyclic operation)14.7V (±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)197 x 165 x 170 Weight (kg)14.6 ConnectionM6 thread CertificationsIEC 60896-21+22, VdS, UL  FAQs about the Yuasa lead-acid battery with 12V and 38AhFor which applications is the NP38-12I VDS suitable?The battery is particularly suitable for:VdS-certified fire detection and security systemsUninterruptible power solutions (UPS)Safety and emergency lightingTelecommunications systemsAutomation and controlApplications with high power requirementsIs flexible installation possible?Yes, the battery may be operated in any position, except for permanently upside-down orientation.How safe is the operation?The battery features integrated low-pressure relief valves, is completely maintenance-free and meets the highest safety and quality standards.How long is the float and cycle lifetime?According to EUROBAT, the battery meets the “Standard Commercial” class with an expected service life of 3–5 years during float operation. In cyclic use, up to 1,000 charge cycles are possible.Which charging voltage and charging parameters apply?Float charging voltage (20 °C): about 13.65 V per block (≈ 2.275 V/cell), compensation –3 mV/cell/°CCycle/boost charging voltage: about 14.5 V per block (≈ 2.42 V/cell), compensation –4 mV/cell/°CMaximum cyclic charging current: up to 9.5 A (~0.25 C)Float charging current limitation: none. In which temperature ranges can the battery be operated and stored?Charging: −15 °C to +50 °CDischarging: −20 °C to +60 °CStorage (fully charged): −20 °C to +60 °C, ideally < +50 °CSelf-discharge: about 3 % per month at 20 °C.