DONGJIN BATTERY DJ12-40 (12V-40Ah)

DJ12-40 (12V 40Ah) – Deep Cycle VRLA Battery

Reliable Power for Industrial and Renewable Applications

The DONGJIN DJ12-40 12V 40Ah AGM Sealed Lead Acid (VRLA) Battery is engineered for reliable performance and long-term durability in industrial, commercial, and renewable energy applications. Built with Absorbent Glass Mat (AGM) technology, it provides maintenance-free operation, excellent deep discharge recovery, and consistent performance across a wide temperature range.

Its rugged construction, including a durable ABS casing and high-quality internal components, ensures dependable power delivery even in harsh environments. With a long float life of up to 15 years, minimal self-discharge, and high cyclic performance, the DJ12-40 is ideal for solar and wind energy systems, UPS, telecommunications, emergency lighting, and other backup power applications.

Key Features

• High Capacity & Reliable: 12V, 40Ah provides stable power for medium-scale applications.

• Maintenance-Free Operation: Sealed AGM design eliminates topping up and reduces upkeep.

• High Discharge Efficiency: Delivers reliable current and recovers quickly from deep discharge.

• Temperature Resistant: Operates reliably between -15°C and +50°C.

• Low Self-Discharge: Retains up to 91% of capacity after 3 months at 25°C.

• Safe & Certified: UL and CE recognized; compliant with ISO9001 and ISO14001 standards.

• Durable Construction: ABS casing ensures safe and rugged operation in various environments.

Technical Specifications

Performance & Reliability

• Temperature Performance: 100% capacity at 25°C, 85% at 0°C, 65% at -15°C.

• Cycle Life: Up to 1200 cycles at 30% Depth of Discharge (DOD).

• Float Life: Up to 15 years under optimal conditions.

• Self-Discharge Rate: Only 9% after 3 months at 25°C.

Applications

• Solar and Wind Energy Systems

• Uninterruptible Power Supplies (UPS)

• Telecommunications Equipment

• Emergency Lighting

• Data Center Backup Power

• Marine & RV Power Systems

• Security and Alarm Systems

Why Choose DONGJIN DJ Series Batteries?

With over 30 years of expertise, DONGJIN produces advanced lead-acid batteries trusted worldwide for performance, reliability, and longevity. The DJ12-40 ensures stable and uninterrupted power for renewable energy storage, industrial applications, and critical backup systems when it matters most.