DEKA Duration DD100-12 100Ah 1.2kWh 12V LiFePO4 Monobloc Battery

The Deka Duration DD100-12 is a 12V 100Ah LiFePO4 Monobloc Battery built on Lithium Iron Phosphate chemistry with a fully integrated Battery Management System (BMS). Rated at 100Ah with 1.2kWh of usable energy, it is engineered for applications that demand deep, repeated cycling — including off-grid solar storage, RV and marine house loads, backup power systems, and mobility applications — all in a sealed, IP67-rated, fire-resistant package.

Key specifications

• Voltage / Capacity: 12V nominal / 100Ah / 1.2kWh usable energy
• Chemistry: LiFePO4 (Lithium Iron Phosphate) — maintenance-free, sealed, no venting or watering required
• Operating temperature: -4°F to 140°F (-20°C to 60°C); charge range 32°F–140°F (0°C–60°C)
• Dimensions / Weight / IP Rating: 12.1 × 6.6 × 8.3 in. (308 × 168 × 210.9 mm) / 26 lbs. (11.8 kg) / IP67 waterproof and dustproof
• Cycle life: 6,000 cycles at 80% DoD — dramatically outlasting AGM and flooded lead-acid alternatives
• Self-discharge: Only 3% per month — suitable for seasonal storage and infrequent-use applications

No maintenance, no spills, far more cycles

Traditional AGM and flooded lead-acid batteries require regular maintenance, restrict usable capacity to 50–80% DoD, and wear out in a fraction of the cycles. The DD100-12's LiFePO4 chemistry eliminates all of those limitations: the sealed, IP67-rated case prevents spills in any condition, 100% depth of discharge is fully supported, and the integrated BMS handles cell balancing automatically. With 6,000 rated cycles at 80% DoD and 99% charge/discharge efficiency, it delivers significantly more usable energy over its service life compared to any AGM alternative of equivalent size.

Key Applications

• Solar energy storage: Serves as the primary house battery in off-grid cabin, van build, or residential solar backup systems — compatible with any LiFePO4-profile MPPT or PWM charge controller.
• RV house loads: Powers lights, appliances, and electronics in motorhomes and travel trailers with zero maintenance and no acid-spill risk in confined compartments.
• Marine applications: Suitable for trolling motors, onboard electronics, and house loads on boats — the IP67 rating and sealed construction handle moisture, vibration, and tilt common in marine environments.
• Mobility and electric vehicles: A reliable deep-cycle power source for low-speed electric vehicles, scooters, and similar applications requiring consistent high-discharge performance.
• Home backup and UPS: Provides dependable standby power for inverter-based home battery backup systems requiring a high-cycle, lightweight 12V 100Ah lithium battery.

Intelligent BMS protection and safe chemistry

• Full BMS protection: Guards against overcharge, over-discharge, short circuit (1000A / 500µs), and high-temperature cutoff — automatically reconnecting once safe conditions are restored.
• Fire-rated ABS PC casing: The enclosure is built from fire-rated materials and rated IP67, making it one of the safest and most durable housings available in a monobloc lithium battery.

Charging and system compatibility

The DD100-12 is compatible with any LiFePO4-profile charger or solar charge controller. Absorption voltage should be set to 14.2–14.6V; float voltage to 13.6–13.8V; recommended charge current is 50A with a maximum of 100A. Multiple units can be wired in parallel — up to 16 units — or configured in a 4-parallel by 4-series arrangement to build 24V or 48V battery banks with scaled capacity. Threaded M8 insert terminals ensure secure, vibration-resistant connections throughout.

Why choose the Deka Duration DD100-12?

Deka by MK Battery has built its reputation on consistent, field-proven battery performance — and the Duration DD100-12 brings that reliability to lithium applications where AGM batteries fall short. Its 6,000-cycle rating, 100% usable DoD, IP67 construction, and wide operating range make it one of the most capable 12V 100Ah LiFePO4 options available for buyers who need a true deep-cycle lithium battery that performs in demanding, real-world conditions. Certified to UN38.3, UL 1973, IEC62619, UL9540A, UL1642, and CE standards.

Dimensions

12.1 × 6.6 × 8.3 in (308 × 168 × 210.9 mm)

Weight

26 lbs (11.8 kg)