12V 400AH LifePO4 With Integrated Heating

12.8V 400Ah LiFePO4 Battery – Ultra High-Capacity Deep Cycle with Smart BMS & IP56 Case
The 12.8V 400Ah LiFePO4 Battery delivers a massive 5120Wh of clean, efficient energy—perfect for large off-grid solar, marine, RV, and backup systems. Featuring a smart BMS, IP56-rated housing, and 1200A peak discharge, it offers unmatched scalability, performance, and safety in demanding power applications.

Key Specifications

• Nominal Voltage – 12.8V
• Capacity – 400Ah
• Reserve Capacity @ 25A – 960 minutes
• Energy – 5120Wh
• Internal Resistance – <5 mΩ
• Round-Trip Efficiency – >99.5%
• Self Discharge – <3% per month

Discharge Specifications

• Max Continuous Discharge – 200A
• Peak Discharge – 1200A
• BMS Cut-Off (10s) – >240A
• BMS Cut-Off (3s) – >300A
• BMS Cut-Off (1s) – >600A
• BMS Low Voltage Cut-Off – 8.8V
• Reconnect Voltage – 12V
• Short Circuit Protection – Yes

Charge Specifications

• Recommended Charge Current – 10A to 100A
• Max Charge Current – 100A
• Charge Current (0 to -10°C) – <0.1C
• Charge Current (-20 to -10°C) – <0.05C
• Recommended Charge Voltage – 14.2–14.6V
• BMS High Voltage Disconnect – 15.0V
• High Voltage Reconnect – 14.6V
• Balancing Voltage – ≥3.2V/cell

Temperature Ratings

• Discharge Temp – -20°C to +60°C
• Charge Temp – -20°C to +45°C
• Storage Temp – -5°C to +35°C
• BMS High Temp Cut-Off – 80°C
• BMS Reconnect Temp – 50°C

Mechanical Specifications

• Dimensions (L × W × H) – 20.47 × 10.55 × 8.93 inches
• Weight – 86.47 lbs (39.2 kg)
• Terminal Type – M8
• Terminal Torque – 90 in-lbs (10 Nm)
• Case Material – ABS
• Ingress Rating – IP56
• Cell Chemistry – LiFePO4 (Prismatic)

Expandability

• Series – Up to 4 batteries (48V max)
• Parallel – Up to 16 batteries (6400Ah max)
Note: Do not configure series and parallel at the same time

Certifications

• Safety – CB, CE, UL1973 @ cell
• Transport – UN38.3, UN3480, Class 9