ESTEL DJM1265 12V 65Ah General Purpose Lead Acid Battery Reliable Power Solution for Telecom UPS and Energy Storage Systems

Overview

ESTEL DJM1265 is a high-performance 12V 65Ah general-purpose lead-acid battery designed for reliability and long service life. With a robust ABS container and advanced sealing technology, it delivers exceptional safety and flexibility for diverse applications. Engineered to operate efficiently across a wide temperature range, this battery offers up to 12 years of floating service life at 25°C. Certified to international standards, it is ideal for telecommunications, energy storage, emergency systems, and more.

Specifications

• Rated Voltage: 12V
• Nominal Capacity (Cref@1.80V/cell): 65Ah
• Dimensions (L×W×H): 348±2mm × 167±2mm × 178±2mm (13.7×6.58×7.00 inches)
• Total Height (incl. terminals): 178±2mm (7.00 inches)
• Weight: 19.2kg (42.3 lbs)
• Terminal Type: T6
• Container Material: ABS

Rated Capacity (25°C)

Performance

• Max. Discharge Current: 650A (5s)
• Internal Resistance (25°C): ≈7.0mΩ
• Operating Temperature:

• • Discharge: -20°C to 55°C (-4°F to 131°F)
  • Charge: -20°C to 40°C (-4°F to 104°F)
  • Storage: -15°C to 50°C (5°F to 122°F)

• Recommended Temperature: 25±3°C (77±5°F)

Charging Parameters (25°C)

• Max. Charging Current: 19.5A
• Float Charge Voltage: 2.25–2.30V/cell
• Equalization Charge Voltage: 2.35–2.40V/cell
• Temperature Coefficient: -3mV/cell/°C (float), -4mV/cell/°C (equalization)

Self-Discharge

≤3% per month at 25°C

Discharge Characteristics (25°C)

Constant Current Discharge (A)

Constant Power Discharge (W/cell)

Applications

• Telecommunications
• UPS & Data Centers
• Energy Storage & Electric Systems
• Emergency Lighting & Security
• Medical & Electronic Equipment
• Motive Power

Features

• Long Service Life: 12-year floating life at 25°C.
• Safety & Reliability: Special exhaust structure and leak-proof design.
• Flexible Installation: Compact and maintenance-friendly.

Certifications

• Standards: IEC 60896, GB/T19638, YD/T 799, DL/T 637
• Certifications: UL, TLC, CE
• Factory Certifications: IATF 16949, ISO 9001, ISO 14001, ISO 45001