Description
The HR1221WF2 is a 12V 5Ah sealed lead-acid (VRLA AGM) rechargeable battery designed for high-rate discharge applications. It is commonly used in UPS systems, emergency lighting, security systems, telecom equipment, and industrial backup power systems. The battery is maintenance-free, spill-proof, and built for reliable standby and cyclic use.
Key Features
• High-rate discharge VRLA AGM battery
• Maintenance-free sealed construction
• Spill-proof and leak-resistant design
• Stable 12V output for backup systems
• Low self-discharge with long standby life
• High discharge performance for UPS applications
• Rechargeable deep-cycle capable
• Strong shock and vibration resistance
• F1/F2 faston terminal compatibility
• Suitable for continuous standby operation
Specifications
- Product Type: Sealed Lead Acid (VRLA AGM) Battery
- Model: HR1221WF2
- Nominal Voltage: 12V
- Capacity: 5Ah
- Chemistry: Lead Acid (AGM – Absorbent Glass Mat)
- Terminal Type: F1 / F2 Faston (4.8 mm / 6.3 mm tabs)
- Dimensions: ~90 × 70 × 106 mm
- Weight: ~1.8 kg
- Internal Resistance: ~20–30 mΩ (typical)
- Charge Voltage (Standby): 13.5 – 13.8 V
- Charge Voltage (Cycle): 14.4 – 15.0 V
- Operating Temperature: -15°C to +50°C (discharge)
- Max Discharge Current: High-rate (UPS grade, short burst up to ~60–90A)
- Application: UPS systems, emergency lighting, alarm systems, telecom equipment, medical devices, backup power systems

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