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Home / Products / Telecom Power System / ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems
Quality ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems factory
Quality ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems factory
Quality ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems factory
Quality ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems factory
Quality ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems factory
Quality ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems factory

ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems

Basic Properties
Place of Origin: China
Brand Name: ESTEL
Certification: ISO9001, CE, 3C, FCC, TLC
Model Number: DJM1240
Trading Properties
Minimum Order Quantity: 100000
Price: 715-4286 usd
Payment Terms: T/T
Supply Ability: 100000
Tags

Telecommunication Power Supply System

Hybrid Energy Telecom Power System

Telecommunication Power System
Product Summary
ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems Overview The ESTEL DJM1240 is a versatile 12V 40Ah lead-acid battery designed for space-constrained applications requiring dependable power. With its compact ABS enclosure and maintenance-free ...

Product Details

Highlight:

Backup Systems Lead Acid Battery

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12V 40Ah Lead Acid Battery

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Telecom Lead Acid Battery
Model: JM1240
Nominal Voltage: 12V
Rated Capacity (c10): 40Ah @1.80V/cell
Imensions (L×W×H): 197×165×170mm (7.75×6.50×6.69in)
Weight: 14.5kg (32.0 Lbs)
Terminal Type: M6
Case Material: ABS
Service Life: 12-year Design Float Life At Optimal Conditions
Product Description

 

 

ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems

 

 

Overview

 

The ESTEL DJM1240 is a versatile 12V 40Ah lead-acid battery designed for space-constrained applications requiring dependable power. With its compact ABS enclosure and maintenance-free design, this battery delivers stable performance across a wide temperature range while offering up to 12 years of float service life at 25°C. Ideal for telecom equipment, small-scale UPS systems, and emergency lighting, the DJM1240 combines robust 400A surge capacity with certified safety features including UL and CE compliance.

 

 

Key Features

 

  • Compact Design: Space-saving 197×165×170mm (7.75×6.50×6.69in) footprint
  • Maintenance-Free: Sealed construction prevents acid leakage
  • High Surge Current: 400A peak discharge (5-second duration)
  • Temperature Resilient: Operates from -20°C to 55°C (-4°F to 131°F)
  • Long Service Life: 12-year design float life at optimal conditions

 

 

Technical Specifications

 

Core Parameters

Specification Value
Model DJM1240
Nominal Voltage 12V
Rated Capacity (C10) 40Ah @1.80V/cell
Dimensions (LxWxH) 197x165x170mm(7.75x6.50x6.69in)
Weight 14.5kg (32.0 lbs)
Terminal Type M6
Case Material ABS
Specification Value

Capacity Performance (25°C)

Discharge Rate Capacity Current
C20 42Ah 2.10A
C10 40Ah 4.00A
C5 36.4Ah 7.28A
C1 25.5Ah 25.5A

Electrical Characteristics

  • Max Discharge Current: 400A (5s pulse)
  • Internal Resistance: 9.0mΩ @25°C
  • Self Discharge: ≤3% per month @25°C

Charging Parameters

  • Max Charge Current: 12.0A @25°C
  • Float Voltage: 2.25-2.30V/cell
  • Equalization Voltage: 2.35-2.40V/cell

Performance Data (25°C)

Constant Current Discharge (Amperes)

Voltage 10min 30min 1h 3h 5h 10h 20h
1.85V/cell 83.2 36.1 22.3 9.99 6.90 3.82 2.03
1.80V/cell 94.6 39.3 23.1 10.8 7.15 4.00 2.10
1.60V/cell 117.8 42.1 25.5 11.5 7.66 4.18 2.19

Constant Power Discharge (Watts)

Voltage 10min 30min 1h 3h 5h 10h 20h
1.85V/cell 155.4 70.3 44.1 19.9 13.7 7.75 4.12
1.80V/cell 173.9 75.9 45.4 21.5 14.3 8.10 4.26

 

 

Applications

 

  • Telecommunications: Network equipment, base stations
  • Backup Power: Small UPS systems, data racks
  • Emergency Systems: Exit lighting, security devices
  • Medical Equipment: Portable devices, monitors
  • Renewable Energy: Small solar storage systems

 

 

Certifications & Standards

 

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

 

 

Why Choose ESTEL DJM1240?

 

  1. Space-Efficient: Compact size fits tight installations
  2. Reliable Performance: Stable output across temperature extremes
  3. Easy Installation: Standard M6 terminals for quick setup
  4. Low Maintenance: Sealed design eliminates watering needs
  5. Proven Safety: Meets international safety standards

Ms. Fiona Liang

Sales Manager

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