Description
The LP26-12 (12V 26Ah) is a heavy-duty, rechargeable Sealed Lead-Acid (SLA) battery utilizing AGM (Absorbent Glass Mat) technology. While often labeled “12V 26A,” the “A” in this context refers to Ampere-Hours (Ah), which is the measure of the battery’s capacity, not a current rating.
Technical Specifications
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Nominal Voltage: 12V
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Nominal Capacity: 26Ah (at 20-hour rate)
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Technology: VRLA / AGM (Maintenance-free, spill-proof)
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Typical Dimensions: Approximately 166mm x 175mm x 125mm (Length x Width x Height).
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Weight: Approximately 7.8kg – 9.4kg (varies by brand and internal construction).
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Terminal Type: Typically M5 or M6 Nut & Bolt (occasionally labeled as F3 terminals).
Key Features
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High Energy Capacity: Suitable for applications requiring longer runtime than standard small-format batteries.
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Maintenance-Free: Sealed design eliminates the need for water or electrolyte refilling.
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Safety: Incorporates a pressure-relief valve for gas recombination and spill-proof operation.
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Durability: Robust ABS plastic casing provides high resistance to shock and vibration.
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Reliability: Engineered for a stable discharge curve, making it ideal for critical backup power.
Typical Applications
Due to its larger size and capacity, this battery is commonly used for:
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UPS Systems: Backup for medium-to-large home or office workstations and server equipment.
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Electric Mobility: Often found in electric wheelchairs, medical carts, and small electric scooters.
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Emergency Power: Backup for security alarm control panels and large-scale emergency lighting arrays.
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Solar/Off-Grid: Storage for small 12V solar lighting setups or camping power packs.
Important Maintenance & Selection Tips
Note on Compatibility: If you are replacing a battery, the physical dimensions are critical. Even among “26Ah” batteries, the arrangement of length/width/height can vary slightly between manufacturers. Always measure your battery compartment before purchasing.
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Charging: Use a charger compatible with AGM/SLA batteries.
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Standby/Float Voltage: 13.5V – 13.8V.
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Cycle Use Voltage: 14.4V – 15.0V.
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Deep Discharge Warning: Do not allow the battery to drop below 10.5V. Regularly discharging to very low levels will significantly reduce its total lifespan.
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Storage: If stored for long periods, perform a “freshening charge” every 3–6 months to prevent internal sulfation.
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Terminal Connections: This battery typically uses bolt-on terminals. Ensure the bolts are tightened securely during installation to prevent heating from poor contact.

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