Lightwave 12V/18Ah UPS Battery – High Performance SMF Battery (LW 18AH)

The Lightwave LW 18AH is a high-performance, 12V 18Ah sealed maintenance-free (SMF) battery designed to provide reliable backup power for UPS systems, emergency lighting, security systems, solar energy storage, and medical mobility devices. Built with valve-regulated lead-acid (VRLA) technology and absorbent glass mat (AGM) design, it ensures spill-proof operation and requires no maintenance. Compact yet powerful, the LW 18AH delivers stable energy output across a wide range of temperatures and supports both cyclic and standby applications, making it a dependable solution for professional and personal power needs.

Product Features

Maintenance-Free VRLA Technology

Sealed design with AGM technology eliminates the need for water refills, offering safe, leak-proof operation.

Compact and Durable Construction

Heavy-duty lead-calcium grids housed in high-impact plastic casing provide a robust battery capable of withstanding physical and thermal stress.

High Capacity Performance

With a nominal voltage of 12V and a capacity of 18Ah, it delivers stable and reliable power for long-duration backup applications.

Secure Terminal Design

Equipped with bolt-type M5 terminals for secure, easy, and fast installation in UPS systems and other devices.

Wide Operating Temperature Range

Maintains 100% capacity at 25°C, 102% at 40°C, and 85% at 0°C, ensuring consistent performance under varying environmental conditions.

Versatile Applications

Perfect for UPS backup, emergency lighting, CCTV and alarm systems, solar energy storage, and other standby power needs.

Optimized Charging

Supports cyclic charging (14.4–15.0V) and standby/float charging (13.5–13.8V) with temperature compensation for safe and efficient operation.

Reliable Discharge Capability

Designed to provide strong constant current and constant power discharge for both short bursts of high energy and long-term backup power.

Product Specifications

• Model: LW 18AH
• Nominal Voltage: 12 V DC
• Capacity: 18 Ah (20-hour rate)
• Battery Type: Sealed Maintenance-Free (SMF), VRLA with AGM technology
• Design Life: 3–5 years typical
• Internal Resistance: 15 mΩ (fully charged)
• Terminals: Bolt-type M5
• Dimensions (L×W×H): 181 × 76 × 168 mm
• Weight: 5.05 kg
• Operating Temperature: Discharge: –20°C to 50°C; Charge: –15°C to 40°C
• Capacity Retention: 102% at 40°C, 100% at 25°C, 85% at 0°C
• Charging Voltage:
  • Cycle Mode: 14.4–15.0 V
  • Standby/Float Mode: 13.5–13.8 V
• Package Dimensions: 19 × 8 × 17 cm
• Applications: UPS systems, security systems, emergency lighting, solar power storage, medical devices