Sealed Lead-Acid Battery Comex 12V 9Ah (model 12V/9AH-7STARS)

Comex sealed lead-acid battery 12V 9Ah (model 12V/9AH-7STARS) is a valve-regulated, maintenance-free rechargeable battery that provides stable 12 V DC power for standby and cyclic applications. Designed for compact installations, this battery delivers reliable backup energy for a range of small to medium power devices where predictable discharge and recharge behavior is required. The sealed construction prevents electrolyte leakage and allows for installation in upright or horizontal positions within the manufacturer's specified limits.

Advantages

The battery’s valve-regulated design eliminates the need for routine electrolyte maintenance while offering consistent voltage output during discharge. Its compact 12V 9Ah capacity balances energy density and size, enabling use in confined spaces without frequent replacement. The sealed build and durable outer case provide resistance to vibration and reduce the risk of corrosion, supporting longer service life in standby and cyclic roles. Rechargeable chemistry ensures repeatable charge/discharge cycles for UPS, alarm and lighting applications.

Suitable for

• Uninterruptible Power Supplies (UPS) for small electronics
• Security and alarm systems
• Emergency and exit lighting
• Portable equipment and handheld devices requiring 12 V backup
• Low-power renewable energy or monitoring systems

Key specifications

• Nominal voltage: 12 V
• Nominal capacity: 9 Ah (at specified discharge rate)
• Battery type: Sealed lead-acid, valve-regulated
• Maintenance: Maintenance-free, no need to add electrolyte
• Operating orientation: Upright or as specified by manufacturer for sealed installation
• Typical applications: Standby and cyclic use profiles

How to use

Install the battery in a dry, well-ventilated enclosure free from direct heat sources and corrosive atmospheres. Connect using appropriate polarity-aware terminals and secure connections to prevent intermittent contact. Charge the battery before initial use with a compatible 12 V lead-acid charger following recommended charge currents and voltage limits for 9 Ah cells. For standby applications, maintain the charger or float voltage to prevent deep discharge; for cyclic use, follow a regulated charge/discharge routine suited to the intended cycle depth.

Usage recommendations

Store and operate the battery at moderate ambient temperatures to maximize service life. Avoid deep discharges whenever possible and recharge promptly after significant discharge. Periodically inspect terminal connections for cleanliness and tightness, and replace the battery when capacity falls below application requirements.