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

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