Description
AGL72-12-F2: backup power you can count on
Sealed reliability for your critical systems
The AGL72-12-F2 is the 12 V – 7.2 Ah sealed lead-acid battery from the ON LITE AG series, designed to deliver stable, reliable backup power to uninterruptible power supplies (UPS), security systems and emergency 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 12 years in float service at 25°C, it is built for installations where every replacement costs time and downtime: fewer interventions over the life of the system and a stable energy reserve for longer. It has the same dimensions and 6.35 mm Faston terminals as the 10-year AG72-12-F2 version, so you can fit it in its place with no modifications.

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. 37 mΩ when fully charged allow it to deliver up to 108 A for 5 seconds.
- Long life and low self-discharge: design life of 12 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 | 7.2 Ah (20-hour rate at 25°C) |
| Design life | 12 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 | 108 A for 5 seconds |
| Internal resistance | approx. 37 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) | 151 x 65 x 100 mm (height including terminals) |
| Weight | 2.0 kg (±3%) |
| Case | ABS (UL94HB) / flame-retardant ABS (UL94-V0) |
| Standards and certifications | IEC, BS, JIS, Eurobat – CE, UL |
Why choose the AGL72-12-F2?
Choosing the AGL72-12-F2 means relying on a safe energy reserve, ready when you need it.
It is the ideal solution for:
- Uninterruptible Power Supplies (UPS): the 12 V 7.2 Ah format with 6.35 mm Faston terminals is one of the most widely used in UPS units for offices, servers and networks, ideal for replacing worn-out batteries and for extended-runtime battery packs.
- Fire and security systems: provides backup power to fire alarm control panels, security systems and alarm systems, even during prolonged outages.
- Emergency and telecommunications: keeps emergency power systems, communication equipment and telecommunication devices running.
With its sealed construction, 12-year design life and compliance with the main international standards, the AGL72-12-F2 is the reliable choice for anyone who installs and maintains uninterruptible power supplies and security systems.
Immediate Availability | 12-Month Warranty | Specialist Technical Support

Reviews
There are no reviews yet.