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

The Deka Duration DD100-12H is a 12V 100Ah LiFePO4 Heated Monobloc Battery built on Lithium Iron Phosphate chemistry with a fully integrated Battery Management System (BMS) and built-in self-heating capability. Rated at 100Ah with 1.2kWh of usable energy, it is engineered for applications in cold climates 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 that charges reliably down to -4°F (-20°C).

Key specifications

• Voltage / Capacity: 12V nominal / 100Ah / 1.2kWh usable energy
• Chemistry: LiFePO4 (Lithium Iron Phosphate) — maintenance-free, sealed, no venting or watering required
• Charge temperature: -4°F to 140°F (-20°C to 60°C) — enabled by built-in heating system
• Dimensions / Weight / IP Rating: 12.1 × 6.6 × 8.3 in. (308 × 168 × 210.9 mm) / 26.45 lbs. / 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

Built-in heating for cold-climate charging

Standard LiFePO4 batteries cannot be safely charged below freezing — a major limitation in cold-weather installations. The DD100-12H solves this with an integrated self-heating system that brings the cells to a safe operating temperature before and during charging, enabling full charge capability down to -4°F (-20°C). Whether installed in a northern off-grid cabin, a winter RV build, or an outdoor backup system, this battery charges reliably where standard lithium batteries would shut down or sustain cell damage. The heating duty cycle is optimized to minimize energy consumption while maintaining safe cell temperatures.

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 DD100-12H'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

• Cold-climate solar energy storage: Serves as the primary house battery in off-grid systems in freezing environments — charges reliably at temperatures where standard lithium batteries cannot.
• RV and van builds: Powers lights, appliances, and electronics in motorhomes and travel trailers through all four seasons, including winter camping and cold-weather travel.
• 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 and similar applications requiring consistent high-discharge performance in varying temperatures.
• Home backup and UPS: Provides dependable standby power for inverter-based home battery backup systems in cold climates 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 (149°F / 65°C) — 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 DD100-12H 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 DD100-12H?

The DD100-12H is the cold-weather solution for buyers who need all the advantages of LiFePO4 — 6,000 cycles, 100% usable DoD, 99% efficiency, and IP67 construction — without sacrificing cold-temperature charging capability. It is the direct upgrade for any installation where a standard lithium battery's freeze-charging limitation is a dealbreaker. 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

26.45 lbs (12 kg)