Sealed AGM Lead‑Acid Battery VPRO 12V 18Ah — VPRO OPTI (MPN 9815)

Sealed AGM Lead‑Acid Battery VPRO OPTI 12V 18Ah is a valve‑regulated, maintenance‑free battery designed to deliver stable 12‑volt power for backup and small mobility systems. Its absorbed glass mat (AGM) construction prevents electrolyte leakage and allows installation in upright or side positions. The battery provides dependable standby and cyclic performance for UPS units, alarm systems, telecom equipment and other devices that require a compact 18Ah 12V power source.

Advantages

The battery’s valve‑regulated, spill‑proof design eliminates the need for regular maintenance and reduces the risk of corrosion and acid leaks. AGM technology offers low internal resistance for good discharge performance and efficient recharge behaviour. Compact dimensions and secure terminal design enable easy replacement and flexible mounting options in confined spaces. The battery is suitable for both cyclic use and long‑term standby service, delivering consistent voltage under moderate loads.

Suitable for

• Uninterruptible Power Supplies (UPS) for home and small office
• Alarm and security systems
• Telecommunications and network equipment
• Electric scooters, mobility aids and small vehicles
• Backup power for measurement and control devices

Key specifications

• Nominal voltage: 12 V
• Capacity: 18 Ah (nominal)
• Battery type: Sealed, valve‑regulated lead‑acid with AGM separator
• Design: Spill‑proof, maintenance‑free
• Mounting orientation: Upright or side‑mounted
• Typical use: Standby and cyclic operation
• Terminal type: Standard screw/bolt terminals (compatible with common connectors)

How to use

Install the battery in a dry, well‑ventilated location and secure it according to the equipment manufacturer’s instructions. Connect the positive and negative terminals matching polarity and ensure connections are tight but not over‑torqued. Charge the battery with a charger or charging circuit designed for sealed lead‑acid AGM batteries and use recommended charging voltages to avoid overcharge. For storage, keep the battery at moderate temperature and recharge periodically to maintain state of charge.

Usage recommendations

For optimal service life, use a charger with AGM‑specific charging profile, avoid deep discharges when possible, and operate the battery within the manufacturer’s recommended temperature range. Regularly inspect terminals for secure connections and clean any corrosion with appropriate cleaning methods.