CSB HRL 1234WF2 12V 9Ah AGM VRLA -akku

UPS systems, emergency lighting, and security installations demand a battery that holds its charge over long standby periods and delivers reliable power when the mains fail. The CSB HRL 1234WF2 is a 12V 9Ah valve-regulated lead-acid (VRLA) battery built with absorbent glass mat (AGM) technology, so it is maintenance-free and leak-proof. It is designed for a 10-year float service life at 25°C, making it a long-term power backup solution for critical equipment.

Who is it for

This battery is suitable for integrators, facility managers, and technicians who service UPS systems, emergency lighting, security panels, and other standby power applications. Its compact footprint and F2 faston terminals allow drop-in replacement in many standard battery cabinets and enclosures.

Main features

• 12V nominal voltage, 9Ah capacity at 20-hour rate
• AGM VRLA technology – no free electrolyte, maintenance-free operation
• 10-year design life in float service at 25°C
• High-rate discharge capability: 34W per cell for 15 minutes to 1.67V/cell
• Low self-discharge: less than 3% per month at 20°C
• Wide operating temperature range: -15°C to 50°C discharge, -15°C to 40°C charge
• ABS case material (UL94-HB) for durability
• F2 (Faston Tab 250) terminals for secure connections

Specifications

• Battery type: VRLA AGM lead-acid
• Voltage: 12V
• Capacity (20HR): 9Ah
• Capacity (10HR): 8.5Ah
• High rate discharge: 34W/cell (15 min to 1.67V/cell)
• Terminal type: F2 (Faston Tab 250)
• Design life: 10 years (float at 25°C)
• Internal resistance: approx. 19 mΩ
• Max discharge current: 100A (5 seconds)
• Max charge current: 2.55A
• Operating temperature (discharge): -15°C to 50°C
• Operating temperature (charge): -15°C to 40°C
• Self-discharge: <3% per month at 20°C
• Case material: ABS (UL94-HB)
• Total height with terminals: 98.5 mm

Tips

For longest service life, keep the battery at a moderate ambient temperature and avoid deep discharges. Recharge promptly after use to prevent sulphation. Verify terminal orientation and dimensions before installation to ensure a proper fit in your equipment.