Ritar 12V 33Ah UPS Replacement Battery 

The Ritar 12V 33Ah UPS Replacement Battery is a high-performance sealed lead-acid (SLA) battery designed for uninterrupted power supply (UPS) systems, emergency backup power, medical equipment, mobility devices, and general-purpose energy storage. Built with advanced Absorbent Glass Mat (AGM) technology, this battery offers dependable performance, low internal resistance, and excellent recovery after deep discharge. It is maintenance-free, spill-proof, and ideal for both standby and cyclic use in residential, commercial, and industrial applications.

Product Features

High-Capacity Backup Power

With a 33Ah capacity, this battery delivers reliable energy for mid-sized UPS systems, telecom backup, medical devices, alarm systems, and DC-powered tools requiring stable performance.

Maintenance-Free Operation

AGM technology eliminates the need for fluid refills and reduces gas emissions. The sealed design allows for safe use in any orientation without risk of leakage.

Deep Discharge Recovery

Engineered for resilience, the Ritar 33Ah battery provides strong recovery from deep discharge events, extending its usability in demanding environments.

Long Service Life

Optimized for float and cyclic use, the battery offers consistent output over hundreds of cycles. It’s suitable for systems requiring long-term, reliable energy storage.

Rugged ABS Construction

Encased in impact-resistant ABS plastic, the battery is durable and designed to handle harsh environmental conditions, including vibration and temperature variations.

Product Specifications

• Brand: Ritar
• Model: DG12-33 or equivalent
• Nominal voltage: 12V
• Capacity: 33Ah 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. 195mm x 130mm x 170mm
• Weight: Approx. 10.5–11.5kg
• 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: 9.9A
• Operating temperature range:
  • Discharge: -15°C to 50°C
  • Charge: 0°C to 40°C
  • Storage: -15°C to 40°C
• Float service life: 5–10 years (depending on conditions)
• Certifications: ISO9001, ISO14001, CE
• Warranty: 1-year limited (may vary by distributor)