Lead-acid battery Voltcraft VC-12713985 12V 5Ah AGM 90x107x70mm

Voltcraft VC-12713985 is a sealed valve-regulated lead-acid (AGM) battery with a nominal voltage of 12 V and a rated capacity of 5 Ah. The maintenance-free, spill-proof design is housed in a compact rectangular casing measuring approximately 90 × 107 × 70 mm, delivering stable voltage for standby and cyclic applications. The battery is intended for use where dependable small-format power is required, such as backup power modules, alarm and security systems, UPS units, and small mobility or portable devices.

Advantages

The AGM construction provides low internal resistance and good charge acceptance, enabling reliable starting and steady standby operation. Its sealed design eliminates the need for regular electrolyte maintenance and prevents leakage, allowing flexible mounting orientations. Compact dimensions and predictable discharge characteristics make it suitable for confined installations and devices with defined power budgets. The battery is engineered for safe indoor use and for integration into systems that require consistent 12 V power.

Suitable for

• Uninterruptible Power Supplies (UPS) for small electronics
• Alarm, access control and security systems
• Emergency lighting and backup power modules
• Small mobility aids and portable equipment
• Hobby electronics, mini inverters and testing rigs

Key specifications

• Nominal voltage: 12 V
• Rated capacity: 5 Ah (at specified discharge rate)
• Battery type: Valve-regulated lead-acid (AGM), sealed and maintenance-free
• Dimensions (approx.): 90 × 107 × 70 mm
• Orientation: Can be mounted in multiple positions due to spill-proof design
• Typical applications: Standby and cyclic use with stable voltage requirements

How to use

Before installation, verify system voltage and connector compatibility. Charge the battery according to the charging profile recommended for lead‑acid AGM batteries: use a regulated charger with appropriate float and cycle charge voltages to avoid under- or overcharging. Connect positive and negative terminals securely and ensure correct polarity. For standby applications, the battery can remain connected to a constant float charger; for cyclic use, follow the device manufacturer's charging and depth-of-discharge guidelines to maximise service life. Store the battery in a cool, dry place if not installed, and perform periodic charging during long-term storage to prevent deep discharge.

Usage recommendations

Use a charger designed for AGM lead-acid batteries and avoid prolonged deep discharges. Maintain ambient temperatures within the device maker's specified range to preserve capacity and longevity. Replace the battery at the first sign of reduced runtime or visible physical damage.