Tridonic ACCU-LiFePO4 4.5Ah 3B CON Side-by-Side Emergency Lighting Battery – 28002321

The Tridonic ACCU-LiFePO4 4.5Ah 3B CON is a rechargeable lithium iron phosphate battery designed for use with approved Tridonic emergency lighting control gear.

Its three cells are positioned side by side, producing a significantly shorter and wider battery pack than the equivalent linear-stick version. This arrangement is suitable for emergency luminaires that have limited installation length but sufficient internal width.

The pack has a rated voltage of 3.2 V and a total rated capacity of 4.5 Ah. Its compact dimensions are approximately 56 × 72 × 19.5 mm.

Integrated electronics provide deep-discharge, overcharge and short-circuit protection. A built-in thermal sensor supports safe charging and protects the battery when used with compatible Tridonic emergency control gear.

LiFePO4 technology provides high energy density, reliable high-temperature performance and good charge retention. Under suitable installation, charging and temperature conditions, the battery offers a design life of up to 12 years.

A plug-in connection simplifies installation and replacement. The battery must only be used with Tridonic emergency lighting units that specifically list article 28002321 as an approved battery.

TECHNICAL SPECIFICATION

• Manufacturer: Tridonic


• Manufacturer part number: 28002321


• Model: ACCU-LiFePO4 4.5Ah 3B CON


• Product type: Rechargeable emergency-lighting battery


• Battery chemistry: Lithium iron phosphate – LiFePO4


• Rated voltage: 3.2 V


• Rated capacity: 4.5 Ah


• Number of cells: 3


• Cell arrangement: 3 × 1 side by side


• Battery capacity per cell: 1.5 Ah


• Battery voltage per cell: 3.2 V


• Cell format: 18650


• Connection type: Plug-in connector


• Integrated thermal sensor: Yes


• Deep-discharge protection: Yes


• Overcharge protection: Yes


• Short-circuit protection: Yes


• Minimum protected cell voltage: 2.0 V


• Battery-pack dimensions: 56 × 72 × 19.5 mm


• Manufacturing tolerance: Length ±3 mm; width and height ±2 mm


• Fixing-hole spacing: Not applicable to the side-by-side configuration


• Approximate weight: 144 g


• Minimum recommended casing temperature: +5°C


• Storage temperature: −20°C to +35°C


• Recommended storage humidity: 60% ±5%


• Maximum storage period: Up to 15 months from the printed manufacturing date under recommended conditions


• Design life: Up to 12 years under suitable conditions


• Guarantee: Eight years, subject to Tridonic’s current guarantee conditions


• Applicable emergency-lighting standard: IEC/EN 60598-2-22

PACKAGE CONTENTS

• 1 × Tridonic ACCU-LiFePO4 4.5Ah 3B CON battery pack


• Integrated battery lead and plug-in connector


• Polycarbonate fixing components

INSTALLATION AND COMMISSIONING

The battery must be connected only to compatible Tridonic emergency lighting control gear.

For a new battery to reach its rated capacity, Tridonic specifies two to three complete activation cycles. Each cycle consists of a 24-hour charge followed by a complete emergency discharge test.

Install the battery away from heat sources and within the temperature limits specified for the associated emergency driver. Do not leave the battery connected to an unpowered emergency unit for an extended period, as this may cause excessive discharge and reduce its service life.

IMPORTANT COMPATIBILITY INFORMATION

Check the current datasheet for the Tridonic emergency unit before ordering. Matching the connector alone does not confirm electrical compatibility.

Emergency duration depends on the emergency control gear, LED load and battery configuration. This battery must not be connected to third-party charging equipment or used as a general-purpose rechargeable battery.

Article 28002321 is approved for selected configurations of compatible Tridonic emergency converters and LED emergency drivers. Always check the individual unit’s current battery-selection table.

The similarly rated Tridonic 28002320 has the same 3.2 V voltage and 4.5 Ah capacity but uses a linear stick arrangement:

• 28002321: Side-by-side format, 56 × 72 × 19.5 mm


• 28002320: Linear stick format, 223 × 22 × 24 mm

These products are not physically interchangeable in every luminaire. Confirm the available installation space and approved battery article before ordering.

SAFETY INFORMATION

• Do not short-circuit, open, crush or damage the battery


• Keep away from water, moisture, direct sunlight and excessive heat


• Do not throw the battery into a fire


• Disconnect the battery during extended luminaire storage


• Transport and store it in its original packaging


• Do not use a damaged or leaking battery


• Dispose of it through an approved battery-recycling facility


• Do not place it in general household or commercial waste