CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery

CSB HR1221WF2

12 V, 21 W 15min/Cell lead-acid Battery

High-Rate Battery Engineered for Fast, Reliable Power

CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery is a high-rate, valve-regulated lead-acid (VRLA) battery designed for applications that require strong and immediate power delivery. With a capacity of 21W at a 15-minute discharge rate, this model is built for systems that need fast energy output without compromising stability. It is ideal for UPS systems, emergency lighting, security panels, and compact high-drain devices.

Compact Size With Strong Output Efficiency

One of the key advantages of the HR1221WF2 battery is its small size and lightweight construction, allowing it to deliver high discharge efficiency without occupying much space. Its compact engineering makes it easy to install inside tight UPS housings, control cabinets, and alarm systems. Despite the reduced footprint, it still provides strong power stability, ensuring your devices stay running when it matters most.

Designed for High-Efficiency Discharge Applications

The HR series is known for superior discharge rates, and the HR1221WF2 model continues that tradition. It is engineered specifically for systems that require rapid bursts of power, allowing it to perform better than standard general-purpose batteries. Whether your setup needs a quick energy release for startup or backup transition, this battery can handle sudden surges smoothly.

Long Service Life for Standby Power

This battery offers an impressive standby service life of up to 5 years, depending on the operating conditions. It maintains stable performance over long durations, making it suitable for applications where reliability and consistency are essential. Whether you use it in a UPS unit or a fire alarm system, you can count on long-term protection with minimal maintenance.

Stable Electrical Characteristics and low Internal Resistance

So With a low internal resistance of approximately 23.0mΩ, the CSB HR1221WF2 ensures efficient energy transfer and reduced power loss. This feature supports stable output during high-load conditions and improves overall battery performance. The battery’s electrical design allows it to handle variations in load without affecting the connected equipment.

Wide Operating Temperature Range

CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery is built to perform across a broad temperature range, making it suitable for environments with fluctuating climate conditions.

• Discharge: -15°C to 50°C
• Charge: -15°C to 40°C
• Storage: -15°C to 40°C

This durability ensures consistent power delivery whether the battery is used indoors, outdoors, or in areas with limited temperature control.

Recommended Charging Settings for Optimal Performance

To maintain reliability and extend battery life, specific charging parameters are recommended:

• Float Charging Voltage: 13.5V – 13.8V
• Cycle Charging / Equalization: 14.4V – 15.0V
• Maximum Charging Current: 2.1A

Following these guidelines ensures healthier charging cycles, prevents overheating, and helps the battery reach its maximum operating lifespan.

Strong Peak Discharge for Emergency Situations

CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery supports a maximum discharge current of 60/90A (5 seconds), which is essential during emergency power transfers or sudden load spikes. This capability makes it especially useful in UPS systems where immediate response is required to protect sensitive equipment from shutdown or data loss.

Reliable Self-Discharge Rate for Long Storage

CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery When stored at 25°C, the HR1221WF2 retains more than 75% of its original capacity after six months, thanks to its efficient self-discharge characteristics. This makes it practical for users who need backup batteries on standby without worrying about frequent recharging.

Durable ABS Housing for Safety and Protection

CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery SO The battery is encased in a high-quality ABS container, offering strong resistance to impact, vibration, and harsh usage conditions. So For applications requiring added fire safety, a UL94-V0 flame-retardant case is available upon request. This ensures safer operation in professional environments such as data centers, telecom cabinets, or industrial control rooms.

Easy Terminal Connection for Quick Installation

CSB HR1221WF2 12 V, 21 W 15min/Cell lead-acid Battery SO Equipped with F1/F2 Faston Tab 187/250 terminals, the HR1221WF2 allows quick, secure, and tool-free installation. These terminals are widely used in UPS units and emergency power systems, making it easy to replace old batteries or integrate new ones into existing setups.

Ideal Applications Across Multiple Power Systems

The CSB HR1221WF2 battery is a dependable choice for various power-critical environments, including:

• Uninterruptible Power Supplies (UPS)
• Emergency lighting systems
• Fire alarm panels
• Security and access control systems
• Medical standby devices
• Telecom and IT equipment

SO Its blend of compact size, strong discharge rate, and long service life makes it a versatile power solution.