Ritar 12V 40Ah UPS Replacement Battery 

The Ritar 12V 40Ah UPS Replacement Battery is a robust, maintenance-free sealed lead-acid (SLA) battery designed to deliver reliable backup power for uninterruptible power supply (UPS) systems, telecommunications, solar energy storage, emergency lighting, and industrial applications. Engineered with Absorbent Glass Mat (AGM) technology, it offers stable voltage output, long service life, and deep cycle capabilities. Its spill-proof, sealed design ensures safety and performance even in demanding environments, making it a trusted power solution for residential and commercial backup systems.

Product Features

High-Capacity Backup Performance

With a 40Ah capacity, this battery delivers longer runtime for mid-sized UPS systems, solar setups, and backup energy storage, providing consistent power during outages or system failures.

Maintenance-Free AGM Technology

The battery features sealed AGM construction, meaning no water refilling or maintenance is required. The non-spillable design allows for safe horizontal or vertical installation.

Long Service Life and Deep Cycle Support

Designed for both float and cyclic applications, the battery supports repeated deep discharges with reliable recovery, making it suitable for daily use in solar or off-grid systems.

Rugged and Vibration-Resistant Build

Encased in impact-resistant ABS plastic, the battery is engineered to withstand heat, vibration, and mechanical shock—ideal for both stationary and mobile power systems.

Wide Range of Applications

Suitable for use in UPS systems, inverters, solar storage, telecom backup, medical equipment, security systems, and mobility aids.

Product Specifications

• Brand: Ritar
• Model: DG12-40 or equivalent
• Nominal voltage: 12V
• Capacity: 40Ah at 10HR rate
• Battery type: Sealed Lead Acid (SLA), AGM
• Terminal type: M6 or F11 (varies by model)
• Dimensions (L x W x H): Approx. 198mm x 166mm x 170mm
• Weight: Approx. 13.5–14.5kg
• Case material: ABS (flame-retardant option available)
• Charging voltage (standby use): 13.5V – 13.8V
• Charging voltage (cyclic use): 14.4V – 15.0V
• Max charging current: 12A
• Operating temperature range:
  • Discharge: -15°C to 50°C
  • Charge: 0°C to 40°C
  • Storage: -15°C to 40°C
• Expected float life: 5–10 years (depending on usage and conditions)
• Certifications: ISO9001, ISO14001, CE
• Warranty: 1-year limited warranty (may vary by distributor)