Sealed AGM 12V 12Ah battery QOLTEC CSB-1212-T2 with T2 terminal for UPS and backup power

Sealed AGM 12V 12Ah battery QOLTEC CSB-1212-T2 with T2 terminal for UPS and backup power is a maintenance‑free, valve‑regulated lead‑acid (VRLA) battery designed for reliable standby and cyclic applications. The battery uses absorbent glass mat (AGM) technology to immobilize the electrolyte, which makes it spill‑proof and suitable for installation in compact enclosures. It features a T2 (Faston) terminal for quick, secure connections and is intended for use in uninterruptible power supplies, alarm systems, emergency lighting and other backup power installations.

Advantages

The QOLTEC CSB-1212-T2 offers a compact form factor and consistent 12V 12Ah capacity that supports stable standby power delivery. AGM construction ensures low self‑discharge, reduced maintenance and resistance to vibration. The sealed, lead‑acid design prevents leaking and allows flexible mounting positions, while the T2 terminal provides convenient, low‑profile electrical connection for rapid installation or replacement.

Suitable for

• Uninterruptible power supplies (UPS) for home and office equipment
• Alarm and security systems
• Emergency and exit lighting
• Backup power for telecommunications and network devices
• Portable or compact standby power installations

Key specifications

• Nominal voltage: 12 V
• Nominal capacity: 12 Ah (at standard discharge rate)
• Battery type: Sealed lead‑acid, AGM (absorbed glass mat)
• Terminal type: T2 (Faston) for quick connection
• Construction: Valve‑regulated, maintenance‑free, spill‑proof
• Recommended operating temperature range: typical for sealed lead‑acid batteries (ambient conditions for standby use)

How to use

Install the battery in the intended equipment following the manufacturer’s mounting instructions and ensuring correct polarity when connecting the T2 terminals. Use appropriate cable connectors that match the T2 (Faston) terminal size and secure them to prevent intermittent contact. Charge the battery with a charger or UPS that provides a compatible charging profile for sealed lead‑acid AGM batteries, avoiding overcharge or deep discharge. Observe ventilation and temperature recommendations of the host device to maintain battery life.

Usage recommendations

Store and operate the battery in a dry, well‑ventilated area away from direct heat sources. For long‑term storage, keep the battery charged and perform periodic top‑up charging to prevent deep discharge. Replace the battery at the end of its service life or when capacity is noticeably reduced to ensure reliable backup power.