Extralink AGM sealed lead-acid battery 12V 40Ah maintenance-free, VRLA, 12.2 kg

Extralink AGM sealed lead-acid battery 12V 40Ah maintenance-free, VRLA, 12.2 kg is a compact, maintenance-free rechargeable battery designed for standby and backup power. This 12 V valve-regulated lead-acid (VRLA) battery uses AGM (absorbed glass mat) construction to immobilize electrolyte, delivering stable performance in a sealed enclosure. With a nominal capacity of 40 Ah and a nominal voltage of 12 V, the unit is appropriate for applications that require reliable energy storage without regular maintenance. The battery is supplied as a single black unit weighing 12.2 kg and has compact dimensions suitable for UPS cabinets, alarm system enclosures and telecom backup modules.

Advantages

The AGM VRLA design provides low self-discharge and reduced risk of leakage, allowing installation in confined or upright positions without electrolyte management. Maintenance-free operation eliminates the need for periodic water refilling and minimizes service interventions. The sealed construction and absorbed electrolyte improve vibration resistance and make the battery suitable for environments where spill prevention and safe handling are required. Its moderate weight and compact footprint make it convenient to integrate into standard backup systems.

Suitable for

Key specifications

How to use

Before installation, ensure the host device is powered down and follow the manufacturer's instructions for safe handling of lead-acid batteries. Connect the positive and negative terminals to the corresponding terminals of the UPS, alarm panel or backup system, observing correct polarity. Charge the battery according to the charging profile recommended for sealed AGM VRLA batteries and allow an initial full charge before putting the battery into service. Perform visual inspections periodically for case integrity and secure connections; because the battery is maintenance-free, no electrolyte topping-up is required.

Recommendations

Store and operate the battery within temperature ranges specified by the system manufacturer; avoid prolonged exposure to high temperatures to maximize service life. Use a compatible charger or power system configured for 12 V AGM VRLA batteries and follow recommended charging voltages and float charge settings. Replace batteries that show reduced capacity or prolonged inability to hold charge, and dispose of used lead-acid batteries through appropriate recycling channels.