PS1812 (12V 18Ah) – Rechargeable Sealed Lead Acid (SLA / AGM) Backup Battery with Nut & Bolt (NB / M5) Terminals

Product Overview

The PS1812 (12V 18Ah) (Dimensions: 181.0 x 77.0 x 167.0 mm / 7.13'' x 3.03'' x 6.57'') is a heavy-duty, rechargeable Sealed Lead Acid (SLA) battery engineered with advanced Absorbent Glass Mat (AGM) technology. Specifically designed for high-rate discharge demands and extended backup autonomy, it provides reliable DC energy storage for Uninterruptible Power Supplies (UPS), commercial access control enclosures, high-capacity alarm panels, telecommunications backup racks, emergency lighting, and mobility equipment.

Featuring a fully sealed, non-spillable Valve Regulated Lead Acid (VRLA) construction, the PS1812 delivers 100% maintenance-free operation and allows secure mounting in multiple orientations without risk of electrolyte leakage or corrosive gas emissions. Built with heavy-duty lead-calcium alloy plates and a high-impact flame-retardant ABS housing (UL94-HB), it comes equipped with heavy-duty Nut & Bolt (NB / M5 / Flag) screw-down terminals, ensuring low electrical resistance, vibration-proof fastening, and maximum current transfer for mission-critical UPS systems.

Key System Features & Functionality

• High-Rate AGM Recombination Technology: Micro-porous glass fiber separators completely immobilize the sulfuric acid electrolyte, facilitating over 99% internal gas recombination and exceptional cyclic durability.

• Heavy-Duty Nut & Bolt (NB / M5) Terminals: Equipped with robust screw-down terminal posts for secure ring-lug wire fastening, eliminating loose connections in high-amperage UPS systems.

• Maintenance-Free & Spill-Proof (VRLA): Sealed valve-regulated construction prevents acid leakage and corrosive fumes, allowing safe indoor operation in sealed server rooms and equipment cabinets.

• Extended Standby & Cyclic Autonomy: Delivers high energy density (18 Ah capacity) designed for critical power backup during prolonged electrical outages.

• Low Self-Discharge Rate: Built with premium lead-calcium grid alloys to retain charge during storage (<3% capacity loss per month at ambient temperatures).

• Multi-Orientation Mounting: Leak-proof architecture permits vertical, horizontal, or side mounting without compromising electrical performance or safety.

• Rugged ABS Enclosure: Durable, shock-resistant container protects internal plates against mechanical vibrations, physical shocks, and high thermal stress.