Tridonic 28005855 PACK-LiFePO4 4.5Ah 3 CON G2 – Certified Quality Manufacturer

28005855 Technical data

Ordering data PACK-LiFePO4 4.5Ah 3 CON 28005855 

Battery voltage per cell 3.2 V
Battery capacity per cell 1.5 Ah
Ambient temperature range (design life of 8 years) +5 … +25 °C

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 62133 standard. This performance is mandatory for use in Emergency Lighting Units to comply with the IEC 60598 2.22.

Glow-wire test

according to EN60598-1 with increased temperature of 850°C passed (valid for housing).

Thermal data

Storage conditions

• Store batteries within the specified temperature range in low humidity conditions. Optimal storage conditions are:
– Temperature: -20… +35 °C up to 15 months after printed date of manufacture
– Relative humidity: 60 ± 5 %
• Avoid atmosphere with corrosive gas
• Disconnect batteries before store or delivery
• Avoid storage of discharged batteries

Installation & commissioning

Activating LiFePO4 batteries

When using rechargeable LiFePO4 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

It is very important that LiFePO4 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 15 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.

Safety

• Do not short-circuit the 28005855 – 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 28005855 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 28005855 is damaged or used 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.

Deep discharge protection

When the battery remains connected without charging for a long period of time after the battery cut off of the driver the battery voltage can still drop. To make sure the cells are not damaged by this voltage drop, the battery protection prevents the battery from further discharge below 2.0 V.

Overcharge protection

If in case of an error or the use of a wrong driver the battery gets overcharged the battery protection will disconnect the battery from the driver at a voltage of 3.9 V. A discharge of the battery is still possible after the protection circuit was triggered to guarantee emergency operation.

Short-circuit protection

In case of a short circuit the battery protection opens the connection to the driver and the output is therefore free of voltage. The output will be reactivated again when the short circuit is removed.

Overtemperature protection

The battery is protected against temporary thermal overheating. If the temperature limit is exceeded the further charging of the battery is no longer possible. The temperature protection is activated below approx. 0 °C and above approx. +60 °C. The discharging of the battery is still possible to guarantee emergency operation.

Disposal

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

Cross referenced with other manufacturers part numbers:

28005855
PACK-LiFePO4 4.5Ah 3 CON G2

Equipment that uses this battery:

89800687

In the whole battery market, from big energy storage for photovoltaic systems and electric vehicles to small handheld devices, there is a
movement from well-known technologies, which were used for decades, to the relatively new lithium based technologies.

The main benefits of lithium based technologies are a very high energy density, and a long lifetime up to twice that of the NiCd or NiMH
batteries.

When using lithium batteries there are some points that have to be considered. There have been reports about possible risks of the lithium technology, which are mostly caused by the chemical reactivity of some lithium technologies.

To ensure safety in operation, Tridonic have been testing several lithium batteries of different chemical compositions since 2013, with regard to performance over lifetime and possible safety issues in terms of high temperature, flames and mechanical damage.

The 18650 and 26650 LiFePO4 cells which are used in the Tridonic batteries stood out due to its good performance and safety in all of
the performed tests. These batteries were introduced into the product range of Tridonic’s emergency LED driver portfolio.

Safe and reliable operation with LiFeGuard

Three layers of safety features addresses the cell, battery pack and emergency driver known as LifeGuard.

• Protection against abnormal operating conditions
• Battery pack with integrated temperature sensor enables constant temperature monitoring
• Intelligent charge level dependant battery charging

Characteristics:

• Suited for high temperature operation (up to 55 °C)
• Design life: 4 years at 55 °C – 8 years at 35 °C

• Storage time: up to 12 months from production date
• Higher energy density than NiCd and NiMH batteries
• Non-critical to the environment – no heavy metal content

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.