FDK dry cell compatible series – rechargeable energy in a standard format. Durable, compatible, industrial-grade
The FDK NiMH Dry Cell Compatible Series merges proven nickel-metal hydride technology with the physical dimensions of traditional AA and AAA batteries. These rechargeable cells are cost-effective, form-compatible and ready for direct use in devices originally designed for disposable batteries. With low self-discharge, they remain ready to use even after long storage periods—ideal for seasonal devices or emergency power needs.

Key applications and performance features

• Digital Devices: Cameras, audio gear, mice, keyboards
• Communication: Radios, amateur two-way systems
• Safety & Lighting: Flashlights, sensors, alarm systems
• Cost-Efficient: Reduces operating costs through reusability
• Form-Fit Compatible: Works in standard battery compartments
• Shelf-Stable: Retains up to 70% charge after 3 years
• Temperature-Resistant: Operates from –4 °F to +122 °F (–20 °C to +50 °C)
• Eco-Friendly: Less waste compared to disposable alternatives
   

Performance overview and model examples
From compact AAA cells for lightweight, mobile devices to high-capacity AA models for energy-demanding systems – the Dry Cell Compatible Series offers versatile energy solutions:
The HR-4UTG delivers 800 mAh for AAA-sized applications, while the HR-4UTGX provides 1000 mAh and supports fast charging at 1000 mA – all in the same compact format.
In AA size, the HR-3UTG is a robust all-rounder with 2000 mAh, ideal for industrial and mobile devices. For maximum runtime, the HR-3UTGX stands out with 2620 mAh capacity, 25 mΩ internal resistance and fast charging up to 2.6 A – engineered for high-performance use.

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FDK NiMH high durability series
For applications with sustained cyclic load requirements
The FDK High Durability Series offers nickel-metal hydride cells designed for long-term use in demanding environments. These batteries are characterized by their outstanding cycle stability, robust charge acceptance, and low-maintenance performance. Their standardized formats make them ideal replacements for conventional NiCd cells—especially where long-lasting, reliable energy supply is critical, such as in safety lighting, communication and control systems, or as backup power sources.
 

Typical applications and key features:

• Emergency lighting and exit signs
• Medical and communication equipment
• Smart metering, POS terminals, public display systems
• Traffic control, ATMs, access control and security systems
• Solar and wind energy storage
• Long service life even under frequent rapid charge/discharge cycles
• Reliable performance from –20 °C to +50 °C
• Fast-charging capability with -ΔV cutoff
• Supports intermittent or timer-based charging for long-term stability
• MU-classified models available in accordance with IEC 61951-2 for highly cyclic use
   

Performance profile and model examples 
The series covers a broad range of use cases. For space-constrained designs, MU-certified models like the HR-AATU (1280 mAh), HR-AAULTU (780 mAh), or HR-2/3AAAUTU (220 mAh) offer long-lasting reliability in cyclic environments. Where higher energy reserves are needed, high-capacity types such as HR-AUT (2200 mAh, 2200 mA fast charge) or HR-4/3FAUT (3700 mAh, 3000 mA) provide industrial-grade performance—even if not explicitly classified under the MU standard.

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FDK high durability in vehicle series
The FDK High Durability in Vehicle Series delivers robust Nickel-Metal Hydride (NiMH) cells engineered for demanding automotive and industrial environments. Whether temperature-resistant, cycle-stable, or pulse-capable – each cell is designed for consistent performance under extreme conditions. With high durability and reliable discharge characteristics, these batteries are ideal for applications requiring long life and high availability, including industrial automation, safety systems, mobile devices, and intelligent sensor technology.

Typical applications and key features:

• Designed for automotive power systems, safety devices, and control electronics
• Operates reliably in temperatures from −40 °C to +85 °C
• Low-temperature discharge capable – ideal for outdoor and cold-climate applications
• Fast chargeable for time-sensitive charging cycles
• High cycle life for long-term deployment
   

Performance profile and model examples 
This series offers a wide range of form factors – from ultra-compact cells to high-capacity models for maximum energy output:
HR-2/3AAAUT: 200 mAh, 40 mA discharge current – ultra-compact for space-constrained devices. HR-AAAUTEW: 460 mAh, 92 mA discharge current – tailored for mobile measuring and sensing devices. HR-AAUTEW / HR-AAUTEWM: 1000 mAh, 200 mA discharge current – balanced performance for standard use cases. HR-AATEZ / HR-AATEX: up to 1300 mAh, 220 mA discharge current – powerful and endurance-optimized. HR-4/3FAUT: 3500 mAh, 700 mA discharge current – built for high-load systems with extended energy requirements

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FDK high rate discharge series: Engineered for performance under pressure
The FDK High Rate Discharge Series leverages advanced electrode technology and specialized current collectors to minimize internal resistance. The result: stable discharge voltage, high current handling capability, and fast charge readiness. These industrial-grade NiMH cells are designed for demanding use cases requiring rapid load response, thermal resilience, and short charging cycles.

Typical applications and key features:

• Electric tools with frequent high-current pulses
• Medical mobility and care equipment, such as nursing lifts
• Electric drive systems and industrial servo packs
• Temperature-resistant from –20 °C to +50 °C
• High-pulse capable, supporting up to 30 A discharge current
• Fast chargeable: full cycle in under 1.2 hours
• Robust mechanical design for compact integration
   

Performance profile and model examples
Compact spaces benefit from the HR-4/5FAUP with 1950 mAh – lightweight, slim, and reliable. For applications demanding maximum energy and load endurance, the HR-4/3FAUP offers 4000 mAh and up to 30 A discharge. Additional models like the HR-SCU (3000 mAh) or HR-4/3FAUHPC (2700 mAh with ultra-low internal resistance) provide flexible solutions to match your technical requirements.

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FDK standard series – reliable energy for industrial applications
The FDK NiMH Standard Series delivers proven nickel-metal hydride technology engineered for dependable performance in professional environments. These rechargeable cells are known for their high energy density, stable discharge characteristics, and low-maintenance operation. Designed to meet the demands of industrial and commercial use, they offer reliable power, temperature stability, and long runtimes across a wide range of applications – from automation and mobility to safety and sensing.

Typical applications and key features:

• Communication: Two-way radios, audio/video equipment, wireless modules
• Sensing & Measurement: Environmental sensors, handheld meters, monitoring devices
• Security Systems: Alarm units, emergency lighting, access control
• Mobility: Barcode scanners, service tools, portable controllers
• Consumer and Home Tech: Lighting units, small appliances, toys
• High pulse capability and cycle durability – suitable for variable loads
• Temperature stable from −20 °C to +50 °C
• Maintenance-free operation, no memory effect
• Supports fast charging up to 3000 mA (depending on model)
   

Performance profile and model examples
Compact cells such as HR-AAAUC (700 mAh) and HR-AAUC (1200 mAh) are ideal where space is limited – lightweight, versatile, and efficient.
For increased power demand, models like HR-AAUE (1400 mAh) and HR-AAU (1650 mAh) provide stable output under higher loads.
The HR-AUE (2700 mAh) strikes a balance between compact size and extended runtime.
Where maximum endurance is required, HR-4/3AU (3600 mAh) and HR-4/3FAU (4500 mAh) deliver high capacity, thermal stability, and strong performance for energy-intensive industrial devices.

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Panasonic (B) button top-series - compact power for demanding applications
The Nickel-Metal Hydride (NiMH) technology of the Panasonic B Button Top Series delivers reliable, rechargeable power for industrial devices that require compact size and consistent performance. With its combination of high pulse capability, temperature stability, and low self-discharge, this series is ideally suited for systems prioritizing efficiency and operational safety. Typical fields of application include industrial electronics, mobile measurement equipment, safety systems, and sensor-based solutions.

Typical applications and key features

• Equipment for data acquisition and signal transmission
• Emergency lighting systems requiring continuous readiness
• Mobile sensor devices and IoT applications
• OEM assemblies with high cycle-life requirements
• Fast-charge capable systems with smart charging control
• Operates reliably in ambient conditions from -10 °C to 65 °C (discharge)
• Button top design for easy integration and secure connectivity
   

Performance profile and model examples
The series includes the BK200AAB model, offering up to 1980 mAh capacity with a standard charge current of 190 mA. For compact devices, the BK80AAAB provides a capacity of up to 780 mAh and a charging current of 75 mA, making it an excellent choice where space is limited. Both models operate at a nominal voltage of 1.2 V and feature low internal impedance, ensuring stable output even under fluctuating loads.

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Reliable backup power for industrial applications
The nickel-metal hydride technology of the Panasonic H Standard Series delivers high pulse capability combined with long-term thermal stability. Engineered for safety-critical systems, these cells stand out through their rugged construction, low self-discharge, and strong cycle durability. Typical applications span areas where uninterrupted power is essential – including industrial automation, building technology, emergency lighting, sensor networks, mobility, and communications.

Typical applications and key features

• Backup power for emergency and safety lighting systems
• Energy buffering for industrial controls and sensor interfaces
• Consistent voltage under variable load conditions
• Low-maintenance in standby operation
• Wide operating temperature range from -10 °C to 60 °C during charge and discharge
• Flexible mounting options for vertical or horizontal installation
   

Performance profile and model examples
With capacities ranging from 700 mAh to 3700 mAh, the H Standard Series meets diverse performance demands. Compact models like the BK70AAH (700 mAh, 70 mA standard charge) are ideal for space-constrained devices, while the high-capacity BK370AH provides 3700 mAh with 3000 mA rapid charging for systems requiring maximum reliability. Models such as BK150AAH or BK210AH strike a balanced ratio of capacity and form factor—perfect for modular solutions in safety systems or mobile communication infrastructure.

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Panasonic (N) standard series – proven NiMH technology for Industrial demands
The Panasonic N Standard Series features nickel-metal hydride (NiMH) cells designed for reliable energy delivery in industrial environments. This well-established battery technology is known for its cycle stability, wide operating temperature range, and maintenance-free performance. Thanks to their durable design and immunity to memory effects, these batteries are ideal for applications requiring steady power over long periods. Typical use cases include industrial systems, building technology, safety infrastructure, mobility, sensor technology, and measurement equipment.

Typical applications and key features

• Power supply for emergency lighting and backup systems
• Voltage-stable source for industrial sensors and actuators
• Long-term operation in mobile measurement and communication devices
• High pulse capability for peak discharge demands
• Stable performance from -10 °C to +65 °C
• Low-maintenance due to rugged construction and low self-discharge
• Flexible charging options including standard and rapid charge modes
• Reliable storage behavior under defined ambient conditions
   

Performance profile and model examples
The series offers a wide range of formats – from compact cells with 700 mAh (BK70AA) to high-capacity models delivering up to 4500 mAh (BK450A). Products like the BK110AAO and BK150AA combine small footprints with solid energy output for portable applications. Larger variants such as the BK250A or BK380A support energy-intensive systems. Depending on the model, rapid charge currents up to 2000 mA are achievable.

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Panasonic (P) high rate discharge-series – high power, reliable, industry-proven
The High Rate Discharge (P) series from Panasonic utilizes proven nickel-metal hydride technology to deliver high current capability and stable cycle life. With their high pulse performance, these cylindrical cells are ideal for demanding industrial applications involving frequent load peaks – even under challenging temperature conditions. Whether for mobile systems, security technology, or sensor applications: the P series offers a long-lasting energy source in a compact design with clearly defined performance parameters.

Typical applications and key features

• Industrial electronics, robotics, medical technology
• Backup power for critical safety devices
• Handheld tools and equipment with high current demand
• Low internal resistance for efficient power delivery
• High charge and discharge rates for fast cycles and strong peak loads
• Operating temperature range from -10 °C to +65 °C – suitable for outdoor use
• Reliable over long-term use – low maintenance and durable
   

Performance profile and model examples
For applications requiring maximum energy output, the BK300SCP delivers 3050 mAh and supports rapid charging up to 3000 mA, making it a high-performance choice for high-load environments.
Where compact design and weight reduction are key, the BK260SCP provides 2700 mAh, offering a well-balanced solution for space-constrained systems. Both cells feature an internal resistance of approx. 4 mΩ and demonstrate their strengths in use cases that demand reliability under continuous load.

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Panasonic PH series – high-rate NiMH cells for demanding industrial applications
The nickel-metal hydride technology behind the Panasonic PH Series delivers reliable power for systems with high discharge currents and challenging operating environments. Engineered for professional use, these cells combine high pulse load capability with a robust design and stable performance across temperatures. Ideal for applications requiring dependable energy and fast recharging – from backup systems and safety technology to sensor networks and mobile industrial electronics.

Typical applications and key features

• Industrial backup power, UPS systems, emergency lighting
• Building security and safety infrastructure
• Mobile measurement and communication devices
• Power supply in high-load or low-temperature environments
• Fast-charging capability – designed for short recharge cycles
• Low internal resistance ensures high discharge currents with stable voltage
• Long cycle life, even under dynamic load profiles
• Wide operating temperature range – suitable for indoor and outdoor use
   

Performance profile and model examples
For compact systems with limited installation space, the BK250SCH offers 2,500 mAh capacity with a standard charge current of 250 mA. Its D-size form factor at just 43 mm in height allows flexible integration.
The BK330APH provides 3,200 mAh in a slim 18 mm diameter – ideal where reliable high-current discharge is required in tight enclosures.
When maximum power is critical, the BK850FPH delivers 8,500 mAh and supports fast charging up to 4,250 mA – making it the choice for energy-intensive systems.

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Panasonic (U) long life-series - reliable backup power for demanding systems
The Nickel-Metal Hydride technology of the Panasonic (U) Long Life Series offers a particularly cycle-resistant and temperature-stable energy solution for industrial applications with stringent reliability requirements. Unlike standard rechargeable cells, these batteries are characterized by their long service life, low self-discharge, and consistent performance under extreme temperature conditions. This makes them ideal for use in applications where uninterrupted energy availability over many years is essential—such as safety-critical systems, infrastructure electronics, or industrial control units.

Typical applications and key features

• Backup power for safety-relevant and critical infrastructure
• Power supply for building automation and control systems
• Used in communication modules and network equipment
• High pulse capability for short bursts of high current
• Temperature resistance from -2 °C to +75 °C
• Overcharge protection via dedicated charge control options
• Especially suited for stationary systems with long design lifecycles
   

Performance profile and model examples
This product line includes a variety of cell formats – from compact AAA-size models for tight spaces to large F-size cells for high-demand installations. Typical capacities range from 500 mAh (e.g., BK60AAAHU) to 12000 mAh (e.g., BK1100FHU), with charging and discharging currents spanning from 50 mA to 5500 mA. Smaller cells are well-suited for applications in sensor systems and mobile electronics, while larger models provide maximum power reserves and extended operating durations in industrial and safety infrastructure settings.

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Panasonic (W) back up for automotive-series - reliable back-up power for automotive and industrial applications
The Nickel-Metal Hydride technology used in the Panasonic W Series offers proven safety, high temperature tolerance, and long operational life. Designed specifically for back-up use in electronic control systems, these batteries maintain critical functions in the event of power loss – efficiently, maintenance-free, and temperature-stable. Thanks to their compact design and rugged construction, they are ideal for environments with space constraints and strict safety requirements. Typical applications include automotive systems, industrial controls, security technology, sensors, and mobile electronics.

Typical applications and key features

• Back-up for automotive ECUs and control units
• Data retention during power failure in industrial systems
• Emergency power supply in safety-related devices
• Compatible with standard charging systems (charge-controlled)
• High cycle durability under variable environmental conditions
• High pulse performance during intermittent loads
• Operating temperature range from -30 °C to +85 °C
• Maintenance-free NiMH cells with no memory effect
   

Performance profile and model examples
BK60AAAWS – Compact and robust. With 500 mAh at 1.2 V, this cell is well suited for applications with limited space. Supports charge/discharge currents up to 250 mA. BK120AAWS – Extended runtime with higher capacity. Delivers up to 1100 mAh at 1.2 V – ideal for applications with higher energy demands. Fast-charge capable with continuous currents up to 550 mA. BK120AAWX – High-temperature resistant up to 105 °C. This NiMH cell combines a typical capacity of 1180 mAh with enhanced thermal stability, making it a reliable choice for automotive use. 

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VARTA V...HR powerful series – compact high-drain cells for industrial applications
The VARTA V...HR powerful series features reliable nickel-metal hydride (NiMH) button cells designed for demanding use cases where space is limited but performance is critical. Thanks to foam electrode technology, these rechargeable cells offer excellent high-current capability, temperature stability, and long cycle life. They are ideal for sectors such as industry, safety systems, mobility, and sensor technology.

Typical applications and key features:

• Communication systems
• Sensors and IoT devices
• Industrial automation
• Medical and healthcare devices
• High discharge currents up to 3000 mA
• Compact and robust construction
• Temperature operation range from -20 °C to +65 °C
• Overcharge tolerance and long shelf life
   

Performance profile and model examples
V600HR: 600 mAh capacity, max. continuous discharge 3000 mA, dimensions: 24.0 x 34.0 x 6.8 mm, approx. 14.5 g. V450HR: 450 mAh capacity, max. continuous discharge 2500 mA, dimensions: 24.0 x 34.0 x 5.6 mm, approx. 12.5 g. V6HR: 6.2 mAh capacity, extremely compact, ideal for cyclical applications and quick charging routines

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Varta V…HRT85C powerfull-series - reliable energy for extreme conditions
The VARTA V...HRT powerful85C series of nickel-metal hydride (NiMH) button cells is engineered for environments where compact size and high temperature resistance are essential. Designed for operation at ambient temperatures up to +85 °C, these temperature-stable batteries deliver cycle-resistant performance and long-term reliability. Their robust construction and low-maintenance trickle charge capability make them ideal for long-duration use in demanding industrial and electronic systems.

Typical applications and key features

• Industrial electronics: stable power supply for control and monitoring units
• Security systems: reliable operation under elevated temperatures
• Mobility solutions: compatible with portable devices featuring rechargeable systems
• Measurement and sensor technology: compact energy for cyclic operation
• IoT devices: ideal for connected systems with higher power demands
• High pulse capability – continuous currents up to 1500 mA depending on the model
• Long service life – more than 1000 charge cycles (IEC 61951-2 compliant)
• Storage resilience – retains up to 80 % capacity after one month at 20 °C
   

Performance profile and model examples
This series includes multiple form factors—from ultra-compact cells for miniature devices to high-capacity models for energy-intensive systems. The V18HRT (Ø 11.5 mm × 2.3 mm) is optimized for space-critical applications with low energy consumption, offering 18 mAh capacity and a continuous discharge current of 100 mA. At the high-performance end, the V500HT (34 mm × 6.5 mm) delivers 500 mAh capacity and supports continuous currents up to 1500 mA—all in a compact and rugged design. Both models are trickle charge-capable and built for extended life in environments reaching up to +85 °C.

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VARTA NiMH V…H series – proven power for industrial demands
The VARTA V…H series of nickel-metal hydride button cells delivers temperature-resistant, maintenance-free, and environmentally friendly energy solutions for industrial applications. Built on reliable mass electrode technology, these cells ensure dependable performance even under demanding conditions. With a stable 1.2 V output, low self-discharge, and excellent overcharge tolerance, they are the go-to choice for long-life applications in power buffering, signaling, sensing, and security and communication systems.

Typical applications and key features

• Backup systems in industrial electronics (RTC, MBU)
• Emergency lighting and alarm systems
• Sensor and tracking devices in logistics and mobility
• Power buffers in smart meters, GPS modules, and IoT devices
• Pulse-capable: Continuous discharge currents up to 560 mA
• Long-lasting: Up to 1,000 charge cycles, 6 years trickle charge operation
• Eco-friendly: Free of lead, cadmium, and mercury
• Safe and certified: UL-recognized, no transport restrictions
• Design-flexible: Compact formats, easy integration
   

Performance profile and model examples
The V…H series spans a wide performance range: from the ultra-compact V15H with 16 mAh for space-critical designs to the high-capacity CP300H with 300 mAh for applications requiring extended runtimes. The V80H with 80 mAh offers a balanced solution with discharge currents up to 140 mA, ideal for compact devices with occasional power needs. For high-demand applications, V250H and CP300H models deliver up to 560 mA continuous current, suited for heavy-duty electronics and critical safety systems.

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Varta V…HT robust-series - reliable energy at elevated temperatures
The VARTA V…HT85C Series stands for high-quality, rechargeable NiMH button cells specifically engineered for applications requiring enhanced thermal resilience. Thanks to their temperature-stable mass electrode technology and high pulse performance, these cells remain fully operational at up to +8 °C – during charging, discharging, and storage. They are maintenance-free, overcharge-resistant, and offer a long service life of up to 1000 charge cycles. This makes them ideal for safety-critical, mobile, or energy-autonomous systems in industrial, transportation, and communication environments.

Typical applications and key features

• Industrial electronics: Backup and buffer power for controllers and memory systems
• Safety technology: Reliable energy supply for emergency lighting and alarm systems
• Mobility and automotive: Power source for telematics, eCall systems, and sensors
• Sensor & IoT solutions: Autonomous power under fluctuating environmental conditions
• Robust NiMH technology without lithium-related risks
• Cycle-resistant and suitable for continuous trickle charge
• UL-certified and tested in accordance with IEC 61951-2
   

Performance profile and model examples
For applications with limited space, the V65HT offers a capacity of 70 mAh and supports continuous discharge currents up to 130 mA. With a diameter of just 15.5 mm, it is particularly lightweight and compact. For higher energy demands, the V150HT delivers 150 mAh and handles continuous discharge currents up to 280 mA, making it the preferred choice for demanding high-temperature use cases. Both models deliver stable performance over many years – even under harsh conditions.

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Varta VH-series - reliable power for industrial demands
The rechargeable Nickel-Metal Hydride (NiMH) cells of the VH series from VARTA combine robust technology with long-lasting performance – designed for industrial applications in demanding environments. With their high pulse capability, excellent cycle life, and stable performance across temperatures, VH cells are ideal where dependable power and predictable service life are essential.
Thanks to consistent manufacturing quality and compliance with international IEC standards, VH cells offer wide-ranging versatility – from mobile electronics to safety-critical systems. Their compact formats, low self-discharge, and broad charging specifications make them a reliable choice for engineers and system developers in sectors like industry, mobility, sensing, and communication.
 

Typical applications and key features

• Industrial equipment, handheld scanners, test and measurement systems
• Sensor systems, data loggers, and wireless modules
• Security and access control devices, emergency lighting
• Medical and laboratory technology
• Rechargeable packs for OEM integration
• Capacity range from 700 to 4000 mAh
• Fast-charge capable with -∆V and temperature cutoff control
• Extended temperature tolerance for storage and operation (-20 °C to +50 °C)
• More than 500 charge cycles (IEC 61951-2 compliant)
• Low internal resistance enabling discharge currents up to 11,400 mA
   

Performance profile and model examples
The VH series offers tailored solutions for every space and power requirement:
For space-constrained devices, the compact VH 700 AAA delivers 700 mAh of dependable energy. The VH 1800 AA and VH 2200 AA strike a balance between size and output for mobile use cases. When peak capacity is required, the VH 4000 4/3 A provides 3800 mAh and supports continuous discharges up to 11,400 mA.
The VH 2700 A with 2600 mAh and the VH 2100 4/5 A with 2100 mAh are also ideal for applications where cycle stability and strong current reserves are critical.

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