Description
The PS12-7 (12V 7Ah) is a widely used Sealed Lead-Acid (SLA) battery utilizing AGM (Absorbent Glass Mat) technology. It is a standard “workhorse” battery for medium-duty backup applications.
Technical Specifications
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Nominal Voltage: 12V
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Nominal Capacity: 7Ah (often interchangeable with 7.2Ah variants)
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Technology: VRLA / AGM (Maintenance-free, spill-proof)
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Dimensions: Approximately 151mm (L) x 65mm (W) x 94mm (H) (Total height including terminals is usually ~100mm).
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Terminal Type: Typically F1 (4.75mm) or F2 (6.35mm) spade terminals.
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Weight: Approximately 2.0kg – 2.1kg.
Key Features
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Maintenance-Free: Sealed construction eliminates the need to add water.
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Versatile Mounting: Can be installed in any orientation (except upside down) thanks to its immobilized electrolyte.
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High Reliability: Designed for consistent, stable power delivery in both float (standby) and cyclic (charge/discharge) service.
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Durability: Housed in high-impact ABS plastic to resist shock and vibration.
Common Applications
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Uninterruptible Power Supplies (UPS): Standard backup for small office and home networking gear.
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Security Systems: Backup power for alarm panels, CCTV, and sensors.
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Emergency Lighting: Essential for exit signs and emergency floodlights.
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Medical & Industrial: Used in portable monitors, testing equipment, and automated sensors.
Maintenance & Best Practices
Crucial Tip: The #1 cause of premature battery failure is “sulfation” caused by leaving the battery in a discharged state. Always recharge the battery promptly after use.
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Charging: Use a smart charger compatible with AGM/SLA batteries. For standby/float use, a voltage of 13.5V to 13.8V is standard.
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Depth of Discharge (DoD): To maximize service life, try to avoid discharging the battery below 50% of its capacity.
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Storage: If storing for long periods, ensure the battery is fully charged before storage and check the voltage every 3–6 months. If it drops, give it a “freshening charge.”
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Terminal Care: Ensure your spade connectors are tight and free of corrosion. If you see white powdery buildup, clean it with a mixture of baking soda and water, then dry thoroughly.
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Physical Fit: Even though “PS12-7” is a standard designation, always measure your battery compartment to ensure the 151mm x 65mm x 94mm dimensions fit your specific device.

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