Backup Battery (SMF)

The SMF (Sealed Maintenance-Free) battery maintains alarm system operation when the normal power supply is interrupted. It supports the control panel and compatible essential devices for the designed standby period. Battery capacity should be calculated using standby current, alarm current, required autonomy, battery aging, and manufacturer recommendations.

Key Specifications:

• Battery type: Sealed maintenance-free rechargeable battery
• Chemistry: Commonly valve-regulated lead-acid (VRLA)
• Nominal voltage: Commonly 12 V DC per battery
• Capacity: Selected according to load and standby duration
• Maintenance: No routine electrolyte refilling
• Compatibility: Must match the control panel's charging system
• Service life: Dependent on operating temperature and maintenance

Common Applications:

• Duress alarm control panels
• Security alarm systems
• Emergency signaling systems
• Low-voltage security installations