Description
The 12V 5Ah sealed lead-acid battery is a common compact power source, widely used for standby power in security and backup systems. While you may see different brand names or model numbers (like “LP5-12” or “UL5-12”), they generally follow standardized specifications.
Technical Specifications
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Nominal Voltage: 12V
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Nominal Capacity: 5Ah (at a 20-hour rate)
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Technology: AGM (Absorbent Glass Mat) – VRLA (Valve-Regulated Lead-Acid)
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Typical Dimensions: Approximately 90mm (L) x 70mm (W) x 101mm (H) (Height may reach 107mm with terminals).
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Terminal Type: Typically F1 (4.75mm / 0.187″ width spade terminal).
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Maintenance: Maintenance-free; sealed and leak-proof.
Key Features
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Safety: Designed for indoor use; the valve-regulated design prevents leaks and allows for gas recombination.
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Reliability: High discharge rate capability makes it ideal for UPS and emergency backup.
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Durability: Housed in high-impact ABS plastic to resist vibration and environmental stress.
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Self-Discharge: Low self-discharge rate (typically <2–3% per month), making it suitable for long-term standby.
Common Applications
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UPS Systems: Small-scale backup for routers, modems, or computers.
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Security & Alarm: Backup power for residential and commercial security panels and motion sensors.
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Emergency Lighting: Powering exit signs and emergency floodlights.
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Medical Equipment: Portable monitoring and diagnostic devices.
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General Purpose: DC power supply for industrial control systems, testing equipment, and electronic apparatus.
Important Maintenance Tips
Note: If you are buying this in Egypt, you will find various brands available in the local market (often priced around 650–700 EGP). Always check the physical dimensions of your existing battery, as slight variations (even by a few millimeters) can affect how it fits in your device’s compartment.
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Charging: Always use a charger compatible with 12V AGM batteries. Using a standard or incorrect charger can cause the battery to swell or fail prematurely.
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Storage: If stored for more than 3–6 months, the battery should be given a “freshening charge” to prevent internal damage (sulfation).
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Depth of Discharge: Avoid letting the battery drain completely. Consistent deep discharge significantly reduces the total lifespan of lead-acid batteries.

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