Sealed AGM Battery CARSPA MS20-12 12V 20Ah for UPS and Backup Power

Sealed AGM Battery CARSPA MS20-12 12V 20Ah for UPS and Backup Power is a valve-regulated lead-acid (VRLA) battery that delivers a nominal 12 V and 20 Ah capacity in a maintenance-free, sealed design. The absorbed glass mat (AGM) construction provides low internal resistance, good charge acceptance and reliable performance in standby and cyclic applications. Its spill-proof housing allows flexible mounting orientations and reduces installation constraints in UPS systems, emergency lighting, security devices and other backup power installations.

Advantages

The sealed AGM design eliminates the need for electrolyte checks and reduces maintenance requirements compared with flooded lead-acid batteries. Low self-discharge and good charge acceptance enable long shelf life and rapid recovery after recharge. The robust housing and internal pressure relief valve ensure safe operation under normal conditions and help prevent leakage. The battery’s compact footprint and standardized 12 V output simplify integration with common UPS units and backup power equipment.

Suitable for

• Uninterruptible Power Supplies (UPS) for servers and network equipment
• Emergency lighting and exit signs
• Security systems and alarm panels
• Telecommunication backup and monitoring devices
• Small-scale standby power installations and portable power units

Key specifications

• Nominal voltage: 12 V
• Nominal capacity: 20 Ah (20-hour rate)
• Battery type: Sealed AGM (VRLA)
• Design: Maintenance-free, spill-proof construction
• Typical applications: Standby and cyclic use
• Recommended charging: Constant voltage with temperature compensation
• Mounting: Flexible mounting orientations allowed

How to use

Install the battery in a dry, well-ventilated enclosure designed for sealed lead-acid batteries and ensure correct polarity when connecting to the UPS or backup device. Use appropriate connectors and torque values for the terminal type provided by the equipment manufacturer. Charge the battery with a compatible charger or UPS charger that provides a regulated constant-voltage charging profile recommended for AGM batteries; avoid deep discharges whenever possible to extend service life. Observe the equipment manufacturer’s instructions for battery replacement intervals and system testing procedures.

Usage recommendations

Store batteries in a cool, dry place and avoid prolonged exposure to temperatures above the recommended operating range. Periodically perform a controlled discharge test in accordance with the UPS or system maintenance schedule to verify capacity. When replacing batteries, replace all batteries in the string or bank at the same time to maintain balanced performance.