• 400Ah 12V TBB Power Lithium Iron Phosphate Battery with Heating & 300A BMS for Leisure, Solar, Wind and Off-grid applications
  • 400Ah 12V TBB Power Lithium Iron Phosphate Battery with Heating & 300A BMS for Leisure, Solar, Wind and Off-grid applications
  • 400Ah 12V TBB Power Lithium Iron Phosphate Battery with Heating & 300A BMS for Leisure, Solar, Wind and Off-grid applications
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400Ah 12V TBB Power Lithium Iron Phosphate Battery with Heating & 300A BMS for Leisure, Solar, Wind and Off-grid applications

400Ah 12V TBB Power Lithium Iron Phosphate Battery with Heating & 300A BMS for Leisure, Solar, Wind and Off-grid applications

TBB-M12400

£1,858.99 GBP
£1,858.99 GBP £1,858.99 GBP
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TBB M12-400 12V 400Ah Lithium Battery

LiFePO4 Technology | 5.12kWh | Built-in Heating & 300A BMS

The TBB-M12400 is a heavy-duty 400Ah Lithium Iron Phosphate (LiFePO4) battery module engineered for demanding mobile and off-grid environments. With a massive 5.12kWh energy capacity, this unit provides a lighter, more efficient alternative to traditional AGM battery banks, typically replacing up to 800Ah of lead-acid capacity.

ADVANCED THERMAL MANAGEMENT: Equipped with an internal heating mat, this battery automatically regulates its temperature when an external charge source is detected, allowing for safe charging in extreme conditions as low as -20°C.

Key Features

  • ✔ 300A Continuous Discharge: Ideal for high-load appliances like A/C and microwaves.
  • ✔ Parallel Expansion: Connect up to 8 units for a total of 3,200Ah capacity.
  • ✔ Smart BMS: Complete protection against over-voltage, short circuits, and heat.
  • ✔ Long Cycle Life: Rated for >3,000 cycles at 100% depth of discharge.

Technical Specs

Nominal Voltage: 12.8V
Rated Capacity: 400Ah
Total Energy: 5120 Wh
Max Discharge: 300A Continuous
Weight: 42.5 kg
Dimensions: 462 x 237 x 321 mm
Communication: CAN / RS485

Compatibility / Fitment Guide

Make/System Model/Application Notes
Grand Design RV ELP (Extreme Lithium Package) Direct OEM replacement/upgrade
Northwood Mfg FoxForward Systems Integrated power systems
Marine Systems Troller/House Bank 12V IP20 rating; internal install only
Off-Grid Solar 12V Battery Bank Compatible with TBB and Victron inverters

OEM Cross Reference

TBB Power PN TBB-M12400 / M12-400
FSi PN FSi-M12-400 (Future Solutions Inc)
Regulatory Compliance UN38.3, CE, UN ECE R10.06

Questions & Answers

Is this a genuine original part?

This is an authentic TBB Power product, supplied by Solarika, providing the highest grade of lithium cell technology for automotive and marine use.

How do I know if it is compatible?

Check your existing battery label for MPN "M12-400" or the TBB logo. This unit is widely used in Grand Design RVs and premium boat builds.

Does it require a specific monitor for the heater to work?

No, the heating mat is managed automatically by the internal BMS. When external charging voltage (>14V) is detected in cold environments, the BMS uses that power to heat the cells before initiating charge.

Note: Due to shipping regulations for high-capacity lithium batteries (Class 9 Dangerous Goods), please ensure you are available for freight delivery. Refer to Solarika.co.uk for warranty registration.

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