Emergency light unit battery 12 volts 5 amperes

12 V 5 Ah 60 W battery for emergency lighting unit

The LB125 battery is a sealed lead-acid (SLA) 12-volt cell with a 5 ampere-hour (5 Ah) capacity, roughly 60 watts. It serves as a replacement battery for emergency lighting units and backup heads, the devices that automatically take over when the power goes out. Without a healthy battery, an emergency lighting unit cannot do its job at the critical moment, which is why replacing the battery on schedule is essential to occupant safety and code compliance.

The sealed lead-acid case is maintenance-free (no electrolyte to add) and limits the risk of leaks, making it a safe, practical choice for commercial, institutional and industrial installations. This proven technology delivers a steady discharge and good service life when replaced on the recommended schedule.

Benefits of this emergency lighting battery

Choosing the right replacement cell keeps your backup systems working and compliant with fire-safety requirements.

Technical specifications of the 12 V 5 Ah cell

• Voltage: 12 volts DC
• Capacity: 5 ampere-hours (5 Ah), about 60 W
• Technology: sealed lead-acid (SLA), maintenance-free
• Replacement battery for emergency lighting units

Service life and runtime of the emergency battery

Under normal conditions, the life of an SLA battery is approximately 3 to 5 years. It decreases when the ambient temperature is high. In addition, too many elements connected to the unit will reduce its lighting time. To estimate consumption, count for example 9-watt tungsten bulbs or 3-watt LEDs.

Job sites and sectors where this emergency lighting battery is required

• Office buildings and retail stores
• Schools, daycares and healthcare facilities
• Plants, warehouses and industrial buildings
• Multi-unit residential buildings
• Any building where code requires working emergency lighting

Frequently asked questions about the emergency lighting battery

How often should an emergency lighting unit battery be replaced?

Generally every 3 to 5 years, or as soon as the unit no longer holds the required runtime during a test. High ambient heat speeds up battery aging.

Will the LB125 battery fit my emergency lighting unit?

It suits 12 V units that accept a 5 Ah capacity and this cell's footprint. Check the voltage and size marked on your old battery before ordering.

Does this sealed lead-acid cell need maintenance?

No. SLA technology is maintenance-free: no water or electrolyte to add. Simply test the emergency unit periodically and replace the battery at end of life.

Suggested products to complete your emergency battery

To complete your emergency lighting system, see also a single 9 W spotlight (LUMT1), a double 18 W spotlight (LUMT2), a 6 V 36 W unit with 2 heads (LU362MT), a 12 V 160 W model with 2 heads (LU121602MT), an exit combo unit (LU36C), a sign with battery (LUMB), a 6 V 9 W bulb (LA69) or a 2-LED 15 W kit (LALED). Under “Accessories” at the bottom of the page.

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