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Deka Duration DD300-12 Specifications

Model DD300-12
Capacity 300Ah
Voltage 12V
Chemistry LiFePO4 (Lithium Iron Phosphate)
Efficiency 99%
Cycle Life 6,000 cycles at 80% DoD
Usable Depth of Discharge 100%
Dimensions 19.69" L x 10.43" W x 9.2" H
Weight 81.8 lbs
Max Discharge Current 300A Recommended, 1000A Peak for 5 seconds
Operating Temperature -4°F to 140°F (-20°C to 60°C)
IP Rating IP67
Built-in BMS Internal with Smart Communication
Certifications UN38.3, UL 1973, IEC62619, CE
MAPPS LFP Deka Battery Systems, now available

 MAPPS® NEMA 3R enclosure with dual Deka Duration LiFePO4 batteries and pre-wired charge controller, ready for field deployment.

DEKA Duration DD300-12 12V 300Ah LiFePO4 Battery

SKU DEKA-LFP-DD300-12
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Deka DD300-12 Monobloc LFP Battery

The Deka Duration DD300-12 is a drop in replacement for Group 8D VRLA batteries and delivers 300Ah of LFP energy storage at 12.8V nominal, providing 3.84 kWh of usable capacity for commercial energy storage, industrial backup power, large-scale off-grid solar, and marine applications. With 99% round-trip efficiency and 100% usable depth of discharge, this monobloc battery captures significantly more usable energy per cycle than traditional lead-acid batteries.

The DD300-12 delivers exceptional long-term value with reduced replacement frequency. The sealed ABS+PC fire-rated enclosure with IP67 rating provides reliable protection in demanding outdoor installations, while included busbars simplify terminal connections for scalable parallel and series configurations.

Deka Duration DD300-12 Battery Features

  • LiFePO4 Chemistry: 12.8V nominal lithium iron phosphate cells deliver 99% round-trip efficiency with 100% usable depth of discharge.
  • Integrated BMS: Internal Battery Management System provides short circuit protection, over-discharge voltage cutoff, cell balancing, and smart communication.
  • 6,000 Cycle Life: Rated for 6,000 cycles at 80% depth of discharge, delivering long service life with lower replacement frequency and reduced total cost of ownership.
  • Drop-in Replacement: Group 8D footprint with M8 bolt threaded insert terminals allows direct replacement of existing lead-acid batteries. Supports up to 16 in parallel or 4 parallel by 4 series configurations.

Deka Duration Smart LFP Technology

deka duration lfp battery showcase

Deka Duration LiFePO4 batteries feature integrated smart BMS technology enabling battery-to-inverter and battery-to-battery communication for optimized system coordination and monitoring. The passive cell balancing system maintains individual cell health throughout the battery's 6,000-cycle lifespan, ensuring consistent performance across the entire pack.

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Deka Duration DD300-12 Technical Review

The Deka Duration DD300-12 is a 12V, 300Ah lithium iron phosphate (LiFePO4) battery delivering 3.84 kWh of usable energy storage, engineered for commercial, industrial, marine, and large-scale off-grid solar applications requiring high-capacity deep-cycle performance. The integrated Battery Management System performs cell balancing, short circuit protection rated at 1200A with 500 microsecond response time, over-discharge protection, and intelligent battery-to-inverter communication.

Scalable system configurations support up to 16 units in parallel or mixed parallel-series arrangements with included busbars for simplified terminal connections. UL 1973, UN38.3, IEC62619, and CE certifications confirm the battery's safety and compliance across global markets, delivering confidence for utility providers, renewable energy integrators, and commercial installations.

Contact Us Today     Get a Free System Quote     Toll Free: 877-297-0014

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MAPPS® Systems: Now Available with Deka Duration LiFePO4

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