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Big Battery 12V Husky 2 INV LiFePO4 Battery – 400Ah 5.12kWh & Kit Options

Big Battery 12V Husky 2 INV LiFePO4 Battery – 400Ah 5.12kWh & Kit Options

by Big Battery
SKU FHSKY-12051-G2-INV
Save up to $952.00 Save $35.80
$1,790.00
$1,790.00 - $7,250.00
$1,790.00
$1,754.20
$1,754.20 - $7,105.00
$1,754.20
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Big Battery 12V Husky 2 INV LiFePO4 Battery  – 400Ah 5.12kWh & Kit Options

INV Lithium Battery | LiFEePO4 | Inverter Comms | RV | Off-Grid | Marine Battery

The 12V HUSKY 2 delivers reliable lithium power for RVs, camper vans, marine vessels, and small off-grid homes. Built with Tier 1 LFP cells, IP65-rated casing, self-heating technology, and an advanced BMS, the HUSKY 2 is our most energy-dense 12V solution yet—engineered for year-round performance, safety, and efficiency wherever your adventures take you.

From casting lines to catching wind, the Husky2 INV quietly powers the freedom behind every wave-chasing moment.

RV

DESIGNED FOR 12V APPLICATIONS:

  • LEAD ACID REPLACEMENT
  • CLASS A, B, & C RVs
  • CAMPER VANS
  • TOW-BEHIND TRAILERS
  • MARINE SYSTEMS
  • BOATS & YACHTS
  • COMMERCIAL VEHICLES
  • FOOD TRUCKS
  • EMERGENCY BACKUP
  • LIGHT TOWERS & SIGNS

INCLUSIONS:

12V Husky 2 - 400Ah 5.12kWh

  • 2 × HUSKY 2 Carrying Handle
  • 2 × L Mounting Bracket
  • 2 × M8 Screws
  • 1 × Red & Black Terminal Rubber Cover
  • 1 × 2AWG 3FT Red & Black Ring to Ring Terminal Cables (CBL086)

12V Husky 2 (2X Kit) - 800Ah 10.24kWh

  • 2 × 12V HUSKY 2 - LiFePO4 - 400Ah - 5.12kWh (FHSKY-12051-G2)
  • 1 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable (CBL092)

12V Husky 2 (3X Kit) - 1200Ah 15.36kWh

  • 3 × 12V HUSKY 2 - LiFePO4 - 400Ah - 5.12kWh (FHSKY-12051-G2)
  • 2 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable (CBL092)

12V Husky 2 (4X Kit) - 1600Ah 20.48kWh

  • 4 × 12V HUSKY 2 - LiFePO4 - 400Ah - 5.12kWh (FHSKY-12051-G2)
  • 3 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable (CBL092)

SPECIFICATIONS:

SKU: FHSKY-12051-G2
System Voltage: 12V
Nominal Voltage: 12.8V
Chemistry: LiFePO4
kWh Capacity: 5.12kWh
Ah Capacity: 400Ah
Charging Voltage Range: 13.9V - 14V
Max Charge Voltage: 14.4V
Operating Voltage Range: 12V - 14.4V
Suggested Low Voltage Cutoff: 12V - 12.7V
BMS Cutoff Range: 10.5V - 11.75V
Cell Configuration: 4S
Max Continuous Discharge Current: 300A
Max Continuous Power: 5120W
Max Discharge Peak Current: 350A (Max 5 seconds)
Max Charge Current: 200A
Charge Temperature Range: -4°F - 113°F (-20°C - 45°C)
Discharge Temperature Range: -4°F - 131°F (-20°C - 55°C)
Optimal Discharge Temperature Range: 59°F - 95°F (15°C - 35°C)
Storage Temperature Range: -4°F - 113°F (-20°C - 45°C) (Max 6 months)
Weight: 95 lb (43.1 kg)
Depth: 12.6 in (320 mm)
Width: 18.1 in (460 mm)
Height: 9.8 in (249 mm)
Max Connections: Up to (16) Parallel
Protection Rating: IP65 / NEMA 4X
Communications: CANBus / RS485
Self-Heating: Yes
Spec Sheet Download: Click Here
User Manual Download: Click Here
Safety Data Sheet Download: Click Here