What Is the UB12750-45821 Battery and How Does It Work
The UB12750-45821 is a 12V 7.5Ah sealed lead-acid (SLA) battery designed for UPS systems, telecom equipment, and backup power applications. It features a maintenance-free design, leak-proof construction, and a lifespan of 3–5 years. Its terminals are compatible with Faston 250 connectors, making it ideal for replacing older batteries in critical power systems.
What Are the Key Specifications of the UB12750-45821 Battery?
The UB12750-45821 operates at 12 volts with a 7.5Ah capacity. Dimensions are 5.94″ x 3.86″ x 3.70″, and it weighs 6.39 lbs. It uses absorbed glass mat (AGM) technology for spill-proof performance, supports 20–25A discharge rates, and works in temperatures ranging from -4°F to 122°F. Recharge time is 6–8 hours with a standard charger.
Where Is the UB12750-45821 Battery Commonly Used?
This battery powers UPS systems, telecom infrastructure, emergency lighting, and medical devices. Its vibration resistance suits industrial settings, while its compact size fits confined spaces like server racks. Popular in APC, Tripp-Lite, and Eaton UPS units, it ensures uninterrupted power during outages for data centers and communication networks.
24V 100Ah Rack-mounted Lithium Battery Factory
How Do You Maintain the UB12750-45821 Battery?
Store the battery at 50–77°F and recharge every 3–6 months if unused. Avoid deep discharges below 10.5V to prevent sulfation. Clean terminals with baking soda to prevent corrosion. Use a smart charger with float-mode monitoring to extend lifespan. Test voltage monthly and replace if capacity drops below 80% of its original rating.
51.2V 100Ah Rack-mounted Telecom Battery
When Should You Replace the UB12750-45821 Battery?
Replace the battery if runtime decreases by 30%, voltage drops below 10V under load, or physical damage/swelling occurs. Most units require replacement after 3–5 years. For UPS systems, proactive replacement every 2–3 years prevents downtime. Always recycle old batteries via certified e-waste programs to comply with EPA regulations.
48V 100Ah Rack-mounted Telecom Battery
What Safety Precautions Apply to the UB12750-45821 Battery?
Wear gloves and goggles when handling to avoid acid exposure. Never disassemble or incinerate the battery. Ensure proper ventilation during charging to dissipate hydrogen gas. Use insulated tools to prevent short-circuiting terminals. Follow manufacturer guidelines for storage and disposal to mitigate fire and environmental risks.
51.2V 50Ah Rack-mounted Lithium Telecom Battery
How Does the UB12750-45821 Compare to Lithium-Ion Alternatives?
Unlike lithium-ion batteries, the UB12750-45821 has lower energy density but higher surge current for UPS applications. SLA batteries are cheaper upfront ($25–$50) but less efficient in extreme temperatures. Lithium-ion lasts 2–3x longer but costs 3x more. Choose SLA for budget-critical setups and lithium for lightweight, high-cycle needs.
48V 50Ah Rack-mounted Lithium Battery Telecom
Conclusion
The UB12750-45821 SLA battery delivers reliable backup power for critical infrastructure. By adhering to maintenance protocols and understanding its technical limits, users can maximize performance while ensuring safety. As energy needs evolve, this battery remains a cost-effective solution for applications requiring stable voltage and high discharge rates.
FAQs
- Q: Can I use the UB12750-45821 in solar power systems?
- A: Yes, but pair with a charge controller to prevent overcharging. Its 12V output suits small off-grid setups.
- Q: Does temperature affect UB12750-45821 performance?
- A: Capacity drops 20% at 32°F and 30% above 104°F. Use insulation or cooling in extreme environments.
- Q: Are generic UB12750-45821 batteries safe?
- A: Reputable brands like PowerStar meet IEC 61056 standards. Avoid uncertified units risking thermal runaway.