Description
AG50-12-F2: backup power you can count on
Sealed reliability for your critical systems
The AG50-12-F2 is the 12 V – 5 Ah sealed lead-acid battery from the ON LITE AG series, designed to deliver stable, reliable backup power to alarm systems, fire protection systems and emergency power systems. Built on proven AGM (Absorbent Glass Mat) technology with VRLA (Valve Regulated Lead Acid) safety valves, it combines high-performance plates and electrolyte in a fully sealed case.
With a design life of 10 years in float service at 25°C, it offers an excellent balance of performance, service life and cost: a reliable replacement for scheduled maintenance and for new installations.
Key benefits and features
- Sealed AGM VRLA technology: the electrolyte is absorbed in glass-fibre separators and a safety valve regulates the internal pressure. The result: no acid leakage, no topping up, no maintenance.
- Ready for demanding discharges: heavy-duty plates and an internal resistance of approx. 36 mΩ when fully charged allow it to deliver up to 75 A for 5 seconds.
- Long life and low self-discharge: design life of 10 years in float service at 25°C. In storage it retains about 82% of its charge after 6 months and 64% after 12 months.
- Stable performance across temperatures: at -15°C it still delivers 65% of its rated capacity, 85% at 0°C and up to 102% at 40°C. For the longest service life, install it in an environment close to 25°C.
- Robust, certified construction: automated assembly, copper 6.35 mm Faston terminals and an ABS (UL94HB) or flame-retardant ABS (UL94-V0) case. It meets IEC, BS, JIS and Eurobat standards and is CE and UL certified.
- Safe transport: designed to be transported safely by road, rail, sea and air.
Key technical details
| Parameter | Specification |
|---|---|
| Technology | Sealed lead-acid AGM VRLA |
| Nominal voltage | 12 Vdc (6 cells) |
| Rated capacity | 5 Ah (20-hour rate at 25°C) |
| Design life | 10 years in float service at 25°C |
| Float charge voltage | 13.50 – 13.80 Vdc at 25°C |
| Cycle charge voltage | 14.40 – 14.70 Vdc at 25°C |
| Max. discharge current | 75 A for 5 seconds |
| Internal resistance | approx. 36 mΩ (fully charged at 25°C) |
| Capacity vs. temperature | 65% at -15°C – 85% at 0°C – 100% at 25°C – 102% at 40°C |
| Terminals | Faston 6.35 mm (F2) |
| Dimensions (L x W x H) | 91 x 70 x 107 mm (height including terminals) |
| Weight | 1.42 kg (±3%) |
| Case | ABS (UL94HB) / flame-retardant ABS (UL94-V0) |
| Standards and certifications | IEC, BS, JIS, Eurobat – CE, UL |
Why choose the AG50-12-F2?
Choosing the AG50-12-F2 means relying on a safe energy reserve, ready when you need it.
It is the ideal solution for:
- Alarm, fire and security systems: offers more runtime than the smaller sizes for control panels and security devices, while keeping a compact footprint.
- Emergency power systems: keeps equipment that must stay operational running, even during a blackout.
- Communication and tools: powers communication equipment, telecommunication systems and power tools with a stable voltage.
With its sealed construction, 10-year design life and compliance with the main international standards, the AG50-12-F2 is the reliable choice for anyone who installs and maintains security systems and emergency power systems.
Immediate Availability | 12-Month Warranty | Specialist Technical Support
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