Qoltec 53077 UPS Battery Sealed Lead Acid (VRLA) 12V 100Ah

Data centers and server rooms rely on uninterrupted power to keep operations running, and the Qoltec 53077 is the battery that stands behind them. This sealed lead acid (VRLA) unit delivers 12V and 100Ah of dependable backup energy for UPS systems, emergency lighting, and renewable energy storage. Its AGM technology ensures high discharge rates and excellent recovery after deep discharge, making it a robust choice for critical infrastructure.

Key specifications

• Battery type: Sealed Lead Acid (SLA) / VRLA / AGM
• Nominal voltage: 12 V
• Nominal capacity: 100 Ah (C20)
• Design life: 10-12 years (Eurobat classification)
• Terminal type: T11 (M8 bolt)
• Internal resistance: approx. 4.5 mΩ
• Max. discharge current: 1000 A (5 sec)
• Float charging voltage: 13.5 - 13.8 V (at 25°C)
• Cycle charging voltage: 14.4 - 15.0 V (at 25°C)
• Operating temperature (discharge): -15°C to 50°C
• Operating temperature (charge): -15°C to 40°C
• Self-discharge: less than 3% per month at 25°C
• Container material: ABS

Why choose it

Maintenance-free and spill-proof, this battery eliminates the hassle of regular upkeep. Its explosion-proof design and low self-discharge rate ensure safety and readiness even after long periods of inactivity. With a design life of over a decade, it offers long-term reliability for demanding applications.

Ideal use cases

• UPS systems for servers and network equipment
• Emergency power supplies for alarms and security
• Telecommunications backup
• Solar and wind energy storage

Good to know

For optimal performance, install the battery in a well-ventilated area and follow the manufacturer's charging guidelines. The T11 terminals provide secure connections, and the ABS container adds durability for indoor use.