Battery 12V-4.5A Malaysian

Description

The 12V 4.5Ah battery is a common compact Sealed Lead-Acid (SLA) unit often used in small electronic devices and security systems. While it looks similar to the 12V 4Ah or 12V 5Ah models, it is a distinct capacity tier.

Technical Specifications

• Nominal Voltage: 12V

• Nominal Capacity: 4.5Ah (at the 20-hour rate)

• Technology: VRLA / AGM (Absorbent Glass Mat)

• Typical Dimensions: Approximately 90mm (L) x 70mm (W) x 101mm (H) (Height is usually consistent with the 5Ah size).

• Weight: Approximately 1.4kg – 1.6kg.

• Terminal Type: Typically F1 (4.75mm / 0.187″) spade terminals.

Key Features

• Maintenance-Free: Sealed construction means no water refilling is ever required.

• Reliability: Designed for dependable power in standby applications.

• Compact: Small footprint makes it easy to integrate into tight electronic enclosures.

• Safe: Features a pressure-relief valve for gas management.

Common Applications

• Alarm Systems: Power backup for residential/commercial burglar alarm panels and sirens.

• UPS Units: Very small-scale battery backup for specialized networking hardware or point-of-sale systems.

• Emergency Lighting: Power for emergency exit signs and small light fixtures.

• Hobbyist Electronics: Used in portable devices, small robotic projects, or handheld testing instruments.

Important Maintenance & Selection Tips

• Size vs. Capacity: The 12V 4.5Ah battery is often physically identical to the 12V 5Ah battery. If your device requires 4.5Ah, you can safely use a 5Ah battery (if it fits your compartment), as the extra capacity will simply provide slightly longer runtime.

• Charging: Use a charger compatible with 12V AGM/SLA batteries. A standard float charge voltage is 13.5V – 13.8V. Avoid using non-regulated power supplies, as they can cause the battery to overheat or swell.

• Connections: Ensure the spade connectors are clean and tight. If they are loose, you can gently squeeze the female connector with pliers for a tighter fit.

• Storage: If the device is not used for long periods, keep the battery charged. If it stays in a discharged state, it will sulfate internally and fail prematurely.