Deka Duration DD460-12H 12V 460Ah LiFePO4 Heated Battery

Deka Duration DD460-12H — 12V 460Ah LiFePO4 Heated Monobloc Battery

The Deka Duration DD460-12H is a 12V 460Ah 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 460Ah with 5.5kWh of usable energy, it is the highest-capacity heated monobloc in the Deka Duration lineup — engineered for the most demanding high-capacity applications in cold climates that require deep, repeated cycling — including large off-grid solar storage, heavy-duty RV and marine house loads, golf carts, and home backup power systems — all in a sealed, IP67-rated, fire-resistant package that charges reliably down to -4°F (-20°C).

Key Specifications

• SKU / MPN: DD460-12H
• Voltage / Capacity: 12V nominal / 460Ah / 5.5kWh usable energy
• Chemistry: LiFePO4 (Lithium Iron Phosphate) — maintenance-free, sealed
• Recommended Charge Current: 150A
• Recommended Discharge Current: 150A
• Max Charge Current: 300A
• Max Discharge Current: 300A
• Surge Current Limit: 1,200A for 3–5 seconds
• Charge Temperature: -4°F to 140°F (-20°C to 60°C) — enabled by built-in heating system
• Discharge Temperature: -4°F to 140°F (-20°C to 60°C)
• Operational Temperature: -4°F to 140°F (-20°C to 60°C)
• Cycle Life: 6,000 cycles at 80% DoD
• Self-Discharge: ~3% per month
• Terminal Type: Threaded Insert M8 Bolt
• IP Rating: IP67 (waterproof and dustproof)
• Dimensions (L×W×H): 19.69" × 10.43" × 9.2" (500 × 265 × 232.4 mm)
• Weight: 99.2 lbs (45 kg)
• Certifications: UN38.3, UN3480, Class 9, UL 1973 Recognized Component, IEC62619, UL9540A, UL1642, CE

Key Features

• Built-in Self-Heating: Charges reliably down to -4°F (-20°C) — where standard lithium batteries shut down or sustain cell damage
• Highest-Capacity Heated Monobloc: 460Ah / 5.5kWh per unit — maximum energy density in the Deka Duration lineup
• Integrated BMS Protection: Guards against overcharge, over-discharge, short circuit (1200A / 500µs), and high-temperature cutoff (149°F / 65°C)
• IP67-Rated Fire-Resistant Enclosure: Fire-rated ABS PC casing for maximum safety and durability
• Scalable System Design: Up to 16 units in parallel; supports 4P×4S configurations for 24V or 48V banks up to 88kWh
• LiFePO4 Chemistry: Inherently safe, no thermal runaway risk, maintenance-free

Applications

• Off-grid solar energy storage (cold climates)
• Golf carts
• RV and van builds (all-season)
• Marine house loads
• Home backup and energy storage systems (BESS/ESS)
• Remote and mobile power applications

Charging & System Compatibility

Compatible with any LiFePO4-profile charger or solar charge controller. Recommended settings: Absorption voltage 14.2–14.6V; Float voltage 13.6–13.8V; Charge current 150A (max 300A). Compatible with PWM or MPPT solar charge controllers configured to a lithium/LiFePO4 charge profile.

Warranty

10-Year Warranty / 6,000 Cycles — Deka Duration offers a warranty of 120 months (10 years) or 6,000 cycles, whichever comes first, under open-loop configuration at standard conditions.

Product Documents

• 📄 Official Datasheet — DD460-12H (MK Battery / Deka)
• 📄 Deka Duration Drop-in Brochure
• 📄 Battery Installation & Operation Manual
• 📄 Spec Sheet — DD460-12

⚠️ This battery ships via freight truck only. It cannot ship via UPS or USPS.