EVI 9Ah 12V Lead-Acid Battery (EVIA9-12)

The EVI 9Ah 12V Lead-Acid Battery (EVIA9-12) is a high-performance, maintenance-free sealed lead-acid (SLA) rechargeable battery designed for reliable standby power applications. Using advanced Absorbent Glass Mat (AGM) technology, this battery delivers spill-proof and vibration-resistant performance, making it ideal for UPS systems, emergency lighting, alarm panels, and small-scale telecom setups. Its robust design ensures consistent performance, a long float service life, and safe operation under varying environmental conditions.

Product Features

Maintenance-Free Design

The EVIA9-12 uses AGM technology, eliminating the need for water refills and making the battery completely spill-proof for safe indoor use.

High Reliability

Engineered for standby applications, it offers a float service life of 3–5 years and up to 9 years under ideal conditions at 25°C, ensuring dependable power when needed most.

Versatile UPS Compatibility

This battery is compatible with a wide range of 800VA–3000VA line-interactive UPS units, including popular brands like APC, Mecer, and Mercury.

Robust Safety Construction

The flame-retardant ABS casing is vibration-resistant, leak-proof, and explosion-proof, providing maximum safety during operation and storage.

Multi-Purpose Applications

Ideal not only for UPS units but also suitable for solar garden lights, gate automation, and small telecom setups.

Product Specifications

• Nominal Voltage: 12V
• Rated Capacity: 9Ah at 20-hour rate
• Battery Chemistry: Sealed Lead-Acid (SLA) with AGM technology
• Dimensions: 151mm (L) x 65mm (W) x 94mm (H); total height including terminals: 100mm
• Weight: 2.6 kg (5.72 lbs)
• Terminals: Faston F1 (4.75mm) / F2 (6.35mm) tabs
• Rated Capacity by Discharge Rate:
  • 20-hour rate (0.45A to 10.5V): 9.0 Ah
  • 10-hour rate (0.83A to 10.5V): 8.3 Ah
  • 5-hour rate (1.44A to 10.5V): 7.2 Ah
  • 1-hour rate (5.40A to 9.6V): 5.4 Ah
  • 15-minute rate (15.6A): 3.9 Ah
• Internal Resistance: ~18.0 mΩ at 25°C
• Max Discharge Current: 135A (5 seconds)
• Self-Discharge Rate: <3% per month at 25°C
• Charging Parameters:
  • Cycle Use: 14.4–15.0V (Temp compensation: -30mV/°C)
  • Float Use: 13.5–13.8V (Temp compensation: -20mV/°C)
  • Max Charging Current: 2.7A (0.3C)
• Operating Temperature Range:
  • Discharge: -20°C to 60°C
  • Charge: 0°C to 40°C
  • Storage: -20°C to 60°C
• Cycle Life vs. Depth of Discharge (DOD):
  • 100% DOD: ~260 cycles
  • 50% DOD: ~650 cycles
  • 30% DOD: ~1,200 cycles