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

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

Name: ESTEL DJM1240 12V 40Ah Compact Lead Acid Battery Reliable Power Solution for Telecom and Backup Systems
Brand: ESTEL
Price: 715 USD

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

Brand Name : ESTEL

Model Number : DJM1240

Certification : ISO9001, CE, 3C, FCC, TLC

Place of Origin : China

MOQ : 100000

Price : 715-4286 usd

Payment Terms : T/T

Supply Ability : 100000

Packaging Details : carton packing

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

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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?

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

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