Ajax EN54 Internal Battery (24 h) white

Ajax EN54 Internal Battery (24 h) Rechargeable Li-ion Battery, White

EN54 Internal Battery (24 h) is a rechargeable Li-ion battery that provides EN 54 fire alarm system devices (EN54 Fire Hub Jeweller or Fire ReX Jeweller) with at least 24 hours of autonomous operation during a power outage

Technical specifications

• Type: Rechargeable lithium-ion battery

• Nominal voltage: 7.4 V

• Capacity: 5 Ah, sufficient for up to 24 hours of mains-independent operation

• Compliance: EN 54-4 — ensures sufficient operating time and safety level in an emergency

• Compatibility: Installs directly in the EN54 Fire Hub Jeweller or EN54 Fire ReX Jeweller

• Colour and variants: Available in both black (ASP black) and white (ASP white)

• Dimensions and weight :

  • Size: approx. 166 × 87 × 23 mm

  • Weight: approx. 270 g

• Protection rating: IP20 — designed for installation in dry indoor environments

Installation, charging and maintenance

• The battery must be installed only in the corresponding EN54 system device (Hub or ReX) — a backup battery is required in all cases, even when external mains power is available

• The battery requires no separate maintenance or charge level monitoring — it is charged automatically while the system is mains-powered

• For long-term storage, it is recommended to keep the battery at a maximum of +30 °C to slow down its natural ageing

Quick overview