AGM battery QOLTEC 12V 18Ah maintenance-free long-life for UPS and electric scooters

Sealed AGM lead-acid battery QOLTEC 12V 18Ah maintenance-free long-life for UPS and electric scooters provides stable 12V output and is designed for prolonged standby and cyclic use. The valve-regulated AGM construction prevents electrolyte leakage and reduces maintenance needs, while the LongLife design increases service life compared with standard lead-acid cells. This battery is compatible with a wide range of DC backup, traction and portable power applications requiring a compact sealed battery with predictable discharge characteristics.

Advantages

The battery delivers a consistent 12V voltage and rated 18Ah capacity with low self-discharge for long storage times. Absorbent Glass Mat (AGM) technology ensures spill-proof operation and improved vibration resistance. Maintenance-free design eliminates the need for topping up electrolyte, and the sealed construction enables flexible mounting positions. The chemistry and construction support reliable charge acceptance and long service intervals in standby and cyclic regimes.

Suitable for

• Uninterruptible Power Supplies (UPS) for home or small office backup
• Electric scooters and small electric vehicles
• DC backup systems, emergency lighting and alarm systems
• Portable power packs and DIY traction projects
• Telecom and network equipment with 12V power requirements

Key specifications

• Nominal voltage: 12 V
• Rated capacity: 18 Ah (C20)
• Battery type: Sealed AGM lead-acid, valve-regulated
• Maintenance: Maintenance-free, no electrolyte topping required
• Typical mounting: Flexible mounting orientation allowed (check device requirements)
• Self-discharge: Low self-discharge for extended storage
• Typical applications: Standby and cyclic use for backup and traction

How to use

Install the battery in a compatible compartment or battery holder that accepts a sealed 12V battery of this size. Ensure correct polarity when connecting to the device or charger and use appropriately rated connectors and cables. Charge the battery with a charger or charging system configured for sealed lead-acid AGM batteries, following manufacturer-recommended charge voltages and current limits. For UPS applications, verify that the UPS charging profile matches AGM specifications; for traction use, follow vehicle manufacturer guidance for mounting and wiring.

Usage recommendations

Store and operate the battery within specified temperature ranges and avoid deep discharge whenever possible to extend service life. Regularly verify charge status if stored for long periods and recharge to recommended levels before putting back into service. Replace the battery at end-of-life or when capacity falls below the required runtime for your application.