Battery 12V/18Ah Securbox

Security installers rely on the Battery 12V/18Ah Securbox to keep alarm panels, UPS units, and emergency lighting running when mains power fails. This 12 V 18 Ah AGM battery fits standard enclosures and delivers steady backup power for residential and commercial systems.

Key specifications

• AGM VRLA technology with 12 V nominal voltage and 18 Ah capacity (C20)
• M5 bolt terminals for secure, low-resistance connections
• 5-year design life in float service
• Max discharge current 180 A (5 sec) and max charge current 5.4 A
• Float charge 13.5–13.8 V, cycle charge 14.4–14.7 V at 25°C
• Internal resistance approx. 14 mΩ for efficient power delivery
• Operating temperature: discharge -15°C to 50°C, charge -15°C to 40°C
• Self-discharge below 3% per month at 25°C
• Durable ABS plastic container

Why choose it

Securbox batteries are built for dependable standby service. The AGM construction immobilizes the electrolyte, preventing leaks and allowing flexible mounting. Low self-discharge means the battery stays ready even after months in storage, and the wide temperature range suits unheated utility rooms or outdoor cabinets.

Ideal use cases

• Burglar alarm and access control systems
• Uninterruptible power supplies (UPS) for IT and telecom
• Emergency lighting and exit signs
• Solar power storage for small off-grid setups
• Electric fences and gate openers

Good to know

For maximum service life, keep the battery on float charge at 13.5–13.8 V and avoid deep discharges. Recharge promptly after use and store in a cool, dry place. Always use a compatible charger designed for sealed lead-acid batteries.