What Is the UB12750-45821 Battery and How Does It Work
The UB12750-45821 battery is a 12V, 75Ah Group 24 deep cycle Absorbent Glass Mat (AGM) sealed lead-acid battery designed for reliable, maintenance-free power in telecom, UPS, solar, and other critical backup applications. Its valve-regulated, non-spillable design enables safe, efficient energy storage with long cycle life and excellent deep discharge capability, ensuring continuous power during outages.
What Are the Main Features of the UB12750-45821 Battery?
The UB12750-45821 battery offers:
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Voltage: 12V nominal
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Capacity: 75Ah (10-hour rate)
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Battery Type: AGM sealed lead-acid, valve regulated
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Terminals: Z-post terminals for secure connections
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Maintenance: Completely maintenance-free, no water addition needed
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Cycle Life: Approximately 1200 cycles at 30% Depth of Discharge (DOD), 500 cycles at 50% DOD, and 225 cycles at 100% DOD
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Self-Discharge: Less than 3% per month when stored
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Design: Leak-proof, spill-proof, and non-spillable, approved for air and ground transport
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Operating Temperature: Suitable for a wide range of environments
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Warranty: Typically 1 year
These features make it a dependable choice for telecom backup and other critical power needs.
How Does the AGM Technology in the UB12750-45821 Battery Work?
AGM (Absorbent Glass Mat) technology uses a fiberglass mat separator soaked in electrolyte, immobilizing the acid and preventing spills. This design allows:
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Valve Regulation: Gases generated during charging recombine internally, preventing gas release and electrolyte loss.
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Maintenance-Free Operation: No need to add water or check electrolyte levels.
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Low Internal Resistance: Enables efficient charge acceptance and high discharge rates.
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Enhanced Safety: Sealed construction reduces risk of leaks and fumes.
This technology improves battery durability and reliability in demanding telecom environments.
Why Is the UB12750-45821 Battery Ideal for Telecom and Backup Applications?
The battery’s deep cycle capability supports frequent discharges and recharges without significant capacity loss, critical for telecom sites facing power interruptions. Its sealed, non-spillable design allows flexible installation in confined spaces without ventilation concerns. The robust cycle life and low self-discharge ensure readiness over long standby periods, maintaining uninterrupted telecom service.
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Which Applications Commonly Use the UB12750-45821 Battery?
Applications include:
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Telecom backup power systems
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Uninterruptible Power Supplies (UPS)
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Solar and renewable energy storage
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Emergency lighting and security systems
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Medical equipment backup
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Off-grid power solutions
Its versatility and reliability make it a popular choice across various industries.
How Long Does the UB12750-45821 Battery Last and What Affects Its Lifespan?
Typical lifespan depends on usage and discharge depth:
| Depth of Discharge (DOD) | Approximate Cycle Life |
|---|---|
| 30% | ~1200 cycles |
| 50% | ~500 cycles |
| 100% | ~225 cycles |
Factors affecting lifespan include temperature, charging regime, and load profile. Proper maintenance and avoiding deep discharges extend battery life.
When Should You Replace the UB12750-45821 Battery?
Replace the battery when:
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Capacity drops below 80% of rated value
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Physical signs of wear such as swelling or corrosion appear
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Battery fails to hold charge or deliver required power
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End of warranty or recommended service life
Regular testing and monitoring help identify replacement timing.
Where Can the UB12750-45821 Battery Be Installed?
Its sealed, spill-proof design allows installation:
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Vertically or horizontally in telecom racks or cabinets
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In confined or ventilated spaces without risk of acid leakage
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In mobile or remote power systems where maintenance access is limited
This flexibility simplifies deployment in diverse environments.
Does the UB12750-45821 Battery Require Special Handling or Maintenance?
No special maintenance is required due to its sealed AGM design. It is non-spillable and approved for air and ground transport under DOT, ICAO, and IATA regulations. Routine inspection for terminal tightness and cleanliness is recommended, but no electrolyte checks or water additions are needed.
Can RackBattery Provide Complementary Telecom Battery Solutions?
Yes, RackBattery, powered by Redway Power, offers advanced rack-mounted lithium-ion battery systems designed for telecom and industrial power applications. Their products provide higher energy density, longer cycle life, and integrated battery management systems, complementing traditional AGM batteries like the UB12750-45821 for scalable, efficient telecom power solutions.
How Does the UB12750-45821 Battery Contribute to Sustainable Telecom Infrastructure?
By enabling reliable backup power without the environmental risks of flooded batteries, the UB12750-45821 supports sustainable telecom operations. Its maintenance-free and leak-proof design reduces hazardous waste, and its long cycle life minimizes battery replacements, lowering environmental impact.
RackBattery Expert Views
“The UB12750-45821 battery exemplifies reliable, maintenance-free power essential for telecom infrastructure. At RackBattery, we recognize the importance of combining proven AGM technology with cutting-edge lithium-ion solutions to meet diverse telecom power needs. Our rack-mounted lithium batteries complement AGM batteries by offering enhanced energy density and lifecycle benefits, enabling telecom operators to optimize reliability and sustainability in their backup power systems.”
Conclusion
The UB12750-45821 battery is a robust, maintenance-free AGM battery designed for deep cycle telecom and backup applications. Its sealed, valve-regulated design ensures safe, spill-proof operation with long cycle life and excellent charge acceptance. Suitable for various critical systems, it provides reliable power backup, supporting uninterrupted telecom services. Complemented by RackBattery’s advanced lithium solutions, it forms part of a comprehensive telecom energy storage strategy.
FAQs
1. What is the nominal voltage and capacity of the UB12750-45821 battery?
12V nominal voltage and 75Ah capacity.
2. How many cycles can the UB12750-45821 battery typically deliver?
Approximately 1200 cycles at 30% depth of discharge.
3. Is the UB12750-45821 battery maintenance-free?
Yes, it is sealed and requires no water addition or electrolyte checks.
4. Can the UB12750-45821 battery be transported by air?
Yes, it is non-spillable and approved for air transport under DOT, ICAO, and IATA regulations.
5. Does RackBattery offer lithium-ion alternatives to the UB12750-45821?
Yes, RackBattery provides advanced lithium-ion rack-mounted batteries for telecom and industrial applications.
