Description
Product Specifications
Key Features
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Premium AGM Technology: Incorporates highly efficient Absorbent Glass Mat (AGM) separators, allowing superior internal oxygen recombination of up to 99%. This means the core remains completely maintenance-free with zero water replenishment required.
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Non-Spillable VRLA Build: Engineered with advanced Valve Regulated Lead Acid (VRLA) safety architecture and a thick, heavy-duty ABS casing to ensure absolute leak-proof operation in any physical mounting angle or position.
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Low Self-Discharge Grids: Constructed using high-purity lead-calcium-tin alloy grids, dramatically lowering self-discharge rates during seasonal storage and ensuring optimal electrical recovery.
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Standard Faston/Flag Terminals: Fitted with robust, highly conductive heavy-gauge spade/flag terminals to establish solid, low-resistance connections in standard wiring harnesses.
Technical Specifications
| Parameter | Specification |
| Brand | Ultracell |
| Model Number | UL18-12 |
| Nominal Voltage | 12V |
| Nominal Capacity (20HR) | 18.0 Ah (to 1.80V/cell at 25°C) |
| Nominal Capacity (10HR) | 16.7 Ah (to 1.80V/cell at 25°C) |
| Design Life | 5 Years (Standby float application at 20°C) |
| Terminal Type | F3 / F13 (Standard Flag/M5 Bolt Layout) |
| Container Material | High-Impact ABS Plastic (UL94-HB Standard) |
| Internal Resistance | Approx. 17.0 mΩ (Fully charged at 25°C) |
| Max Discharge Current | 270A (5s maximum duration) |
| Operating Temp Range | Discharge: -15°C to 50°C | Charge: 0°C to 40°C |
| Float Charge Voltage | 13.50V to 13.80V at 25°C (Temperature Coeff: -20mV/°C) |
| Cycle Charge Voltage | 14.40V to 15.00V at 25°C (Temperature Coeff: -30mV/°C) |
| Maximum Charging Current | 5.4A |
| Dimensions | Length: 181.5 mm | Width: 77 mm | Height: 167.5 mm |
| Average Weight | 5.32 kg (11.73 lbs) |
Primary Applications
Ideally optimized for medium-duty emergency power storage, field instruments, and automated backup networks:
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Uninterruptible Power Supplies (UPS): Provides reliable backup power systems for desktop computers, networking stations, and point-of-sale (POS) terminals.
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Emergency & Security Infrastructure: Powers commercial burglar alarms, CCTV safety surveillance arrays, automated fire control panels, and backup exit lighting.
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Electronic Toy Vehicles: Acts as a high-capacity upgrade or replacement battery for children’s motorized ride-on cars, scooters, and electric karts.
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Medical Systems: Supplies dependable standalone power for medical backup installations, specialized diagnostic test gear, and clinical tool carts.
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Small Solar Storage: Perfect for compact off-grid solar setups, marine electronics, and remote telemetry stations.
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