Tridonic 28002087 ACCU-NiMH 2.2Ah 2A – 2-Cell 2.2Ah NiMH Emergency Lighting Battery ( Limited Stock )

28002087 Technical Data

28002087 Standards

The battery cells are designed to comply with the IEC international standard and tested according to the normative permanent charge endurance test described in the IEC 61951-2 standard. This performance is mandatory for use in Emergency Lighting Units to comply with the IEC 60598 2.22.

Glow-wire test

according to EN 61347-1 with increased temperature of 850°C passed (valid for connectors and caps).

28002087 Thermal data

Storage conditions

• Avoid atmosphere with corrosive gas
• Disconnect batteries before store or delivery
• Avoid storage of discharged batteries
• Store batteries within the specified temperature range in low humidity conditions. Optimal storage conditions are:
– relative humidity: < 60 %
– temperature: -20… +25 °C for up to 12 months after printed date of manufacture

• A long term storage in open circuit leads to battery self discharge and deactivation of chemical components. It could be required to charge and discharge the batteries a few times to recover the initial performance.

Installation & commissioning the 28002087

Activating NiMH batteries

When using rechargeable NiMH batteries for emergency lighting following point are essential in order to achieve the specified design life time of the batteries: In order to activate new batteries, 2-3 full charging-discharging are needed to make sure batteries achieve their rated capacity.

This activating process is defined by running 2-3 full charging (24 hrs) and discharging (1/2/3 hrs) cycles of the batteries. If the first duration test fails, please repeat the test once again
after a 24 hour charging period.

Avoidance of excessive cycling

During building installations, in many cases, mains supply is not available on a permanent 24-hour basis which then leads to unwanted, uncontrolled excessive battery cycles. This has a very strong effect on the design life time of the battery. Make sure that in such situations, the battery remains disconnected in the luminaire till the mains power supply is stable on a 24-hour basis.

It is strongly recommended to refer to the datasheets of Tridonic emergency control gears to avoid excessive cycling. At the same time, make sure that this information is handed over to the installation staff / electrician in order to ensure a proper way of installation and commissioning.

Avoidance of deep-discharge conditions

If NiMH batteries or individual cells within a battery pack, are driven into deep discharge state they will not recover after charge / discharge cycles. Therefore it is very important that NiMH batteries are not left connected for long periods in a discharged state.

Following options may lead to a deep discharge situation and must be avoided:
• Storage periods of rechargeable batteries of over 12 month without recharging the battery packs.
• Shipment, storage of assembled emergency luminaires with battery pack connected to the emergency driver.
• Long periods of mains-interruptions of more than two weeks, once, the emergency system is installed and the battery pack is connected to the emergency driver.

Mechanical details of the 28002087

Battery leads

• Delivery quantity: 1 red and 1 black
• Length: 1,300mm
• Wire type: 0.5mm² solid conductor
• Insulation temperature rating: 90°C
• Polarity: red (positiv +), black (negative -)

Battery end termination

Push on 4.8mm receptacle to suit battery soade fitted with insulating cover

Module end termination

5.0mm stripped insulation

Two-piece batteries are supplied with a 200mm lead with 4.8mm receptacles at each end and insulating covers to connect the separate sticks together. Connect two battery sticks in series by connecting plus to minus.

Batteries

Connection method: 4.8 x0.5mm spade tag welded to end of cell.

For stick packs this connection is accessible after the battery caps have been fitted.
To inhibit inverter operation disconnect the batteries by removing the connector from the battery spade tag.

Technical data Accu

International designation of the 28002087

• 2.2 Ah HRMU 23/43

Safety

• Do not short-circuit the battery pack – when installing the luminaire make sure sharp edges do not come into contact with cables.
• Do not open or damage the battery pack or throw it into a fire.
• Protect the battery against moisture and keep away from water.
• Do not expose the battery to direct sunlight or excessive heat (see storage conditions).
• Transport and store the battery only in its original packaging.
• Comply with the transport conditions of the transport company.
• Follow the instructions on the safety data sheets.

Damage/improper use

If the battery is damaged or user incorrectly vapours and liquids may escape from it. If you come into contact with battery fluid wash immediate with water and seek medical assistance if necessary.

Disposal

• Do not dispose of batteries with normal waste.
• Comply with local regulations when disposing of batteries.

Equipment that uses this battery:

89899858
89800029
89800030
89800031
89899860

NIMH Batteries

NiMH (nickel-metal hydride) batteries are rechargeable power sources that use a hydrogen-absorbing alloy at the negative terminal and nickel oxide hydroxide at the positive terminal.

They offer higher energy density than older NiCd batteries and are more environmentally friendly, but they have a higher self-discharge rate than newer technologies like lithium-ion. NiMH batteries are commonly used in household electronics, cordless phones, and some hybrid vehicles.

How they work

During a discharge cycle, the negative electrode (metal hydride) releases stored hydrogen, and the positive electrode (nickel oxyhydroxide) absorbs hydroxide ions, generating electricity.

During a charge cycle, the process is reversed, with electrons flowing from the charger to the positive electrode and then to the negative electrode, storing energy.

Advantages

Higher capacity: Typically have two to three times the capacity of NiCd batteries.

Environmentally friendly: Contain fewer toxic elements than NiCd batteries, making them safer to dispose of and recycle.

Less prone to memory effect: Less sensitive to the memory effect than NiCd batteries.

Good performance: Can operate well at a wide range of temperatures and are efficient at high-rate discharges.

Disadvantages

Higher self-discharge: They lose their charge faster than some other battery types when not in use, though low self-discharge (LSD) versions are available.

Shorter lifespan: Generally have a shorter cycle life and lifespan compared to modern alternatives like lithium-ion batteries.

Susceptible to heat: High temperatures can degrade their performance and reduce their service life.

Lower energy density: Have lower energy density than lithium-ion batteries, limiting their use in high-performance or very compact devices.

Common Uses

Consumer Electronics: Remote controls, digital cameras, toys.
Tools: Cordless devices.
Automotive: Older hybrid electric vehicles.
Robotics & IT: Industrial applications.

Tridonic are a Zumtobel Group company, founded in 1956 in Dornbirn, Austria. For more than 60 years, they have been a driving force in the development of professional lighting solutions.

Today, Tridonic is a world-leading provider of lighting technology for professional applications, including office buildings, and retail outlets, hotels and restaurants, the education industry and outdoor lighting sectors.

In Tridonics’ extensive range of energy-efficient dimmable and non-dimmable LED drivers they offer the right products for every indoor and outdoor application – from cost-efficient LED drivers in proven Tridonic quality to premium products that give you maximum flexibility and convenience.

Tridonics’ dimmable LED drivers can be controlled with different analog and digital dimming signals. Tridonic basicDIM Wireless products allow wireless control without additional wiring.