12V 334Ah Essential Series LiFePO4 Battery (4.28kWh)

12V 334Ah LiFePO4 Battery – 4.28kWh

The 12V 334Ah LiFePO4 Battery delivers 4.28kWh of energy storage in a compact, lightweight package. Designed for demanding applications, it provides the capacity and output needed for marine house banks, RVs, camper vans, off-grid systems, and large solar installations.

Key Features

• 334Ah Capacity: 4.28kWh of energy storage for extended off-grid runtime.

• High Output: 200A maximum continuous discharge with up to 400A for 3 seconds, making it suitable for large inverters and high-demand loads.

• 200A Maximum Charge Current: Supports fast charging when paired with a properly sized charging system.

• Built-In Heating: Internal heating allows the battery to safely accept a charge in temperatures as low as -4°F (-20°C).

• Bluetooth Monitoring: Monitor state of charge, battery capacity, cycle history, and other battery information through the free Victron-compatible? app.

• Expandable: Configure up to 4 batteries in series for 24V, 36V, or 48V systems and up to 16 batteries in parallel for increased capacity.

• Smart BMS: Integrated Battery Management System protects against overcharging, over-discharging, short circuits, and excessive temperatures.

• Long Cycle Life: Rated for 4,000+ cycles.

• Maintenance-Free: No watering or routine maintenance required.

• 11-Year Manufacturer Warranty: Long-term coverage for added peace of mind.

Specifications

Configuration

• Cell Configuration: 4S1P

• Chemistry: LiFePO4

• Capacity: 334Ah

Electrical

• Nominal Voltage: 12.8V

• Operating Voltage Range: 10.0–14.6V

• Maximum Continuous Discharge: 200A

• Maximum Continuous Charge: 200A

• Maximum Peak Discharge: 400A for 3 seconds

• Maximum Charge Voltage: 14.6V

• Series Configuration: Up to 4 batteries

• Parallel Configuration: Up to 16 batteries

Temperature

• Charge Temperature: -4°F to 131°F (-20°C to 55°C) with heating

• Discharge Temperature: -4°F to 140°F (-20°C to 60°C)

• Storage Temperature: 32°F to 95°F (0°C to 35°C)

Physical

• Weight: 60 lbs

• Length: 13.75" at base / 15.5" including handles

• Width: 7.63"

• Height: 10.0" / 10.5" including terminal bolts

Recommended Charging Parameters

• Bulk/Absorption: 14.2–14.4V

• Absorption End Condition: Stop when charge current reaches ≤ C/20 or after 15 minutes maximum

• Float: Disabled (preferred) or 13.3–13.6V

• Re-bulk Voltage: 13.2V

• Temperature Compensation: 0mV/°C (none)

• Equalization: Disabled

• Battery Charge Temperature Range: 32°F to 131°F (0°C to 55°C)

• BMS High-Voltage Cutoff: 14.6V

• SoC Recalibration: 14.6V

Built for High-Demand Applications

With 334Ah of capacity and up to 200A of continuous discharge capability, this battery is designed for systems that require substantial energy storage and high power output. Its integrated heating, Bluetooth monitoring, and smart BMS provide the features needed for reliable, low-maintenance operation in demanding marine, RV, and off-grid applications.